diff --git a/src/main/angular/src/app/api/User/UserPrivate.ts b/src/main/angular/src/app/api/User/UserPrivate.ts
index 33cc9f7..6322a82 100644
--- a/src/main/angular/src/app/api/User/UserPrivate.ts
+++ b/src/main/angular/src/app/api/User/UserPrivate.ts
@@ -7,6 +7,7 @@ export class UserPrivate extends UserPublic {
     readonly privateUuid: string,
     publicUuid: string,
     readonly created: Date,
+    readonly lastAccess: Date,
     name: string,
     readonly password: boolean,
     readonly email: string,
@@ -21,6 +22,7 @@ export class UserPrivate extends UserPublic {
       validateString(json['privateUuid']),
       validateString(json['publicUuid']),
       validateDate(json['created']),
+      validateDate(json['lastAccess']),
       validateString(json['name']),
       validateBoolean(json['password']),
       validateString(json['email']),
diff --git a/src/main/angular/src/app/api/User/user.service.ts b/src/main/angular/src/app/api/User/user.service.ts
index ad75509..5b1087b 100644
--- a/src/main/angular/src/app/api/User/user.service.ts
+++ b/src/main/angular/src/app/api/User/user.service.ts
@@ -13,6 +13,7 @@ import {GroupLeftEvent} from "../group/events/GroupLeftEvent";
 import {UserLogoutEvent} from "./events/UserLogoutEvent";
 import {validateBoolean} from "../common/validators";
 import {UserLoginRequest} from "./requests/UserLoginRequest";
+import {Page} from "../common/Page";
 
 function userPushMessageFromJson(json: any): object {
   const type = json['_type_'];
@@ -143,4 +144,14 @@ export class UserService {
     this.router.navigate(['Profile']);
   }
 
+  adminPage(pageIndex: number, pageSize: number, next: Next<Page<UserPrivate>>) {
+    this.api.postPage(['User', 'Admin', 'page'], {pageIndex: pageIndex, pageSize: pageSize, orders: [{property: 'lastAccess', direction: 'ASC'}]}, UserPrivate.fromJson, next);
+  }
+
+  adminDelete(user: UserPrivate, next?: Next<void>) {
+    if (confirm("Benutzer \"" + user.name + "\" wirklich löschen?")) {
+      this.api.postNone(['User', 'Admin', 'delete'], user.privateUuid, next);
+    }
+  }
+
 }
diff --git a/src/main/angular/src/app/app.routes.ts b/src/main/angular/src/app/app.routes.ts
index 16d5ff8..e35d65a 100644
--- a/src/main/angular/src/app/app.routes.ts
+++ b/src/main/angular/src/app/app.routes.ts
@@ -9,6 +9,7 @@ import {GroupComponent} from "./pages/group/group/group.component";
 import {NumbersComponent} from "./pages/tools/numbers/numbers.component";
 import {EmailConfirmationComponent} from "./pages/email-confirmation/email-confirmation.component";
 import {LoginComponent} from "./pages/login/login.component";
+import {AdminComponent} from "./pages/admin/admin.component";
 
 export const routes: Routes = [
   {path: 'SolarSystemPrintout', component: SolarSystemPrintoutComponent},
@@ -27,6 +28,8 @@ export const routes: Routes = [
   {path: 'Profile', component: ProfileComponent},
   {path: 'emailConfirmation/:emailConfirmation', component: EmailConfirmationComponent},
 
+  {path: 'Admin', component: AdminComponent},
+
   // fallback
   {path: '**', redirectTo: '/SolarSystem'},
 ];
diff --git a/src/main/angular/src/app/pages/admin/admin.component.html b/src/main/angular/src/app/pages/admin/admin.component.html
new file mode 100644
index 0000000..f8a28b2
--- /dev/null
+++ b/src/main/angular/src/app/pages/admin/admin.component.html
@@ -0,0 +1,27 @@
+<div class="tileContainer">
+  <div class="tile">
+    <div class="tileInner">
+      <div class="tileTitle">
+        Benutzer
+      </div>
+      <div class="tileContent">
+        <app-pagination [page]="page" (goto)="goto($event)"></app-pagination>
+        <table>
+          <tr>
+            <th>Benutzername</th>
+            <th>Zuletzt</th>
+            <th>Aktion</th>
+          </tr>
+          <tr *ngFor="let user of page.content">
+            <td>{{ user.name }}</td>
+            <td>{{ user.lastAccess | relative:now }}</td>
+            <td class="buttons">
+              <div class="button buttonDelete" (click)="userService.adminDelete(user)">Löschen</div>
+            </td>
+          </tr>
+        </table>
+        <app-pagination [page]="page" (goto)="goto($event)"></app-pagination>
+      </div>
+    </div>
+  </div>
+</div>
diff --git a/src/main/angular/src/app/pages/admin/admin.component.less b/src/main/angular/src/app/pages/admin/admin.component.less
new file mode 100644
index 0000000..e69de29
diff --git a/src/main/angular/src/app/pages/admin/admin.component.ts b/src/main/angular/src/app/pages/admin/admin.component.ts
new file mode 100644
index 0000000..dcdca7e
--- /dev/null
+++ b/src/main/angular/src/app/pages/admin/admin.component.ts
@@ -0,0 +1,42 @@
+import {Component, OnInit} from '@angular/core';
+import {NgForOf} from "@angular/common";
+import {Page} from "../../api/common/Page";
+import {PaginationComponent} from "../../shared/pagination/pagination.component";
+import {UserService} from "../../api/User/user.service";
+import {UserPrivate} from "../../api/User/UserPrivate";
+import {RelativePipe} from "../../shared/relative.pipe";
+
+@Component({
+  selector: 'app-admin',
+  standalone: true,
+  imports: [
+    NgForOf,
+    PaginationComponent,
+    RelativePipe
+  ],
+  templateUrl: './admin.component.html',
+  styleUrl: './admin.component.less'
+})
+export class AdminComponent implements OnInit {
+
+  private readonly PER_PAGE: number = 20;
+
+  protected page: Page<UserPrivate> = Page.EMPTY;
+
+  protected now: Date = new Date();
+
+  constructor(
+    protected readonly userService: UserService,
+  ) {
+    // -
+  }
+
+  ngOnInit(): void {
+    this.goto(0);
+  }
+
+  goto(pageIndex: number) {
+    this.userService.adminPage(pageIndex, this.PER_PAGE, page => this.page = page);
+  }
+
+}
diff --git a/src/main/angular/src/app/shared/pagination/pagination.component.html b/src/main/angular/src/app/shared/pagination/pagination.component.html
new file mode 100644
index 0000000..9806bed
--- /dev/null
+++ b/src/main/angular/src/app/shared/pagination/pagination.component.html
@@ -0,0 +1,5 @@
+<div class="pagination">
+  <div class="number" *ngFor="let number of numbers" (click)="goto.emit(number)" [class.currentPage]="number === page.number">
+    {{ number + 1 }}
+  </div>
+</div>
diff --git a/src/main/angular/src/app/shared/pagination/pagination.component.less b/src/main/angular/src/app/shared/pagination/pagination.component.less
new file mode 100644
index 0000000..3f718a2
--- /dev/null
+++ b/src/main/angular/src/app/shared/pagination/pagination.component.less
@@ -0,0 +1,16 @@
+@import "../../../styles/config";
+
+.pagination {
+
+  .number {
+    float: left;
+    padding: @halfSpace;
+    margin: @halfSpace;
+    text-align: center;
+  }
+
+  .currentPage {
+    color: dodgerblue;
+  }
+
+}
diff --git a/src/main/angular/src/app/shared/pagination/pagination.component.ts b/src/main/angular/src/app/shared/pagination/pagination.component.ts
new file mode 100644
index 0000000..294505b
--- /dev/null
+++ b/src/main/angular/src/app/shared/pagination/pagination.component.ts
@@ -0,0 +1,34 @@
+import {Component, EventEmitter, Input, Output} from '@angular/core';
+import {Page} from '../../api/common/Page';
+import {NgForOf, NgIf} from "@angular/common";
+
+@Component({
+  selector: 'app-pagination',
+  standalone: true,
+  imports: [
+    NgForOf,
+    NgIf
+  ],
+  templateUrl: './pagination.component.html',
+  styleUrl: './pagination.component.less'
+})
+export class PaginationComponent {
+
+  _page: Page<any> = Page.EMPTY;
+
+  protected numbers: number[] = [];
+
+  @Output()
+  readonly goto: EventEmitter<number> = new EventEmitter<number>();
+
+  @Input()
+  set page(page: Page<any>) {
+    this._page = page;
+    this.numbers = [...Array(this.page.totalPages).keys()];
+  }
+
+  get page(): Page<any> {
+    return this._page;
+  }
+
+}
diff --git a/src/main/java/de/ph87/tools/email/EmailRepository.java b/src/main/java/de/ph87/tools/email/EmailRepository.java
index 3d2c708..292c504 100644
--- a/src/main/java/de/ph87/tools/email/EmailRepository.java
+++ b/src/main/java/de/ph87/tools/email/EmailRepository.java
@@ -1,5 +1,6 @@
 package de.ph87.tools.email;
 
+import de.ph87.tools.user.User;
 import lombok.NonNull;
 import org.springframework.data.domain.Page;
 import org.springframework.data.domain.Pageable;
@@ -8,6 +9,7 @@ import org.springframework.data.repository.ListCrudRepository;
 import org.springframework.data.repository.PagingAndSortingRepository;
 
 import java.time.ZonedDateTime;
+import java.util.List;
 
 public interface EmailRepository extends ListCrudRepository<Email, String>, PagingAndSortingRepository<Email, String> {
 
@@ -15,4 +17,7 @@ public interface EmailRepository extends ListCrudRepository<Email, String>, Pagi
   @Query("select e from Email e where e.sent is null and (e.tried is null or e.tried <= :earliest) and e.tries < 5")
   Page<Email> findNextToSend(@NonNull final ZonedDateTime earliest, @NonNull Pageable pageable);
 
+  @NonNull
+  List<Email> findAllByUser(@NonNull User user);
+
 }
diff --git a/src/main/java/de/ph87/tools/email/EmailService.java b/src/main/java/de/ph87/tools/email/EmailService.java
index 2cfd12a..0263ea7 100644
--- a/src/main/java/de/ph87/tools/email/EmailService.java
+++ b/src/main/java/de/ph87/tools/email/EmailService.java
@@ -80,4 +80,11 @@ public class EmailService {
       .replaceAll("%EMAIL_CONFIRMATION%", user.getEmailConfirmation());
   }
 
+  public void deleteAllByUser(@NonNull final User user) {
+    emailRepository.findAllByUser(user).forEach(email -> {
+      emailRepository.delete(email);
+      log.info("Email deleted: {}", email);
+    });
+  }
+
 }
diff --git a/src/main/java/de/ph87/tools/group/Group.java b/src/main/java/de/ph87/tools/group/Group.java
index 25c34d1..92cfaf7 100644
--- a/src/main/java/de/ph87/tools/group/Group.java
+++ b/src/main/java/de/ph87/tools/group/Group.java
@@ -27,6 +27,7 @@ public class Group extends GroupAbstract implements IWebSocketMessage {
 
   @Transient
   @ToString.Exclude
+  @Getter(AccessLevel.NONE)
   private GroupUuid _uuid;
 
   @NonNull
diff --git a/src/main/java/de/ph87/tools/group/GroupMapper.java b/src/main/java/de/ph87/tools/group/GroupMapper.java
index 4626368..ab4c2df 100644
--- a/src/main/java/de/ph87/tools/group/GroupMapper.java
+++ b/src/main/java/de/ph87/tools/group/GroupMapper.java
@@ -1,6 +1,7 @@
 package de.ph87.tools.group;
 
 import de.ph87.tools.group.dto.GroupDto;
+import de.ph87.tools.user.User;
 import de.ph87.tools.user.UserPublicDto;
 import de.ph87.tools.user.push.UserPushService;
 import lombok.NonNull;
@@ -20,6 +21,8 @@ public class GroupMapper {
 
   private final UserPushService userPushService;
 
+  private final GroupRepository groupRepository;
+
   @NonNull
   public GroupDto toDto(@NonNull final Group group) {
     final UserPublicDto owner = new UserPublicDto(group.getOwner());
@@ -35,4 +38,8 @@ public class GroupMapper {
     return dto;
   }
 
+  public void pushAllByUser(@NonNull final User user) {
+    groupRepository.findAllByUsersContains(user).forEach(this::push);
+  }
+
 }
diff --git a/src/main/java/de/ph87/tools/group/GroupRepository.java b/src/main/java/de/ph87/tools/group/GroupRepository.java
index 39c6ce0..f3752e0 100644
--- a/src/main/java/de/ph87/tools/group/GroupRepository.java
+++ b/src/main/java/de/ph87/tools/group/GroupRepository.java
@@ -4,6 +4,7 @@ import de.ph87.tools.user.User;
 import lombok.NonNull;
 import org.springframework.data.repository.ListCrudRepository;
 
+import java.util.List;
 import java.util.Optional;
 import java.util.Set;
 
@@ -12,6 +13,9 @@ public interface GroupRepository extends ListCrudRepository<Group, String> {
   @NonNull
   Optional<Group> findByUuid(@NonNull String uuid);
 
+  @NonNull
+  List<Group> findAllByOwner(@NonNull User user);
+
   @NonNull
   Set<Group> findAllByUsersContains(@NonNull User user);
 
diff --git a/src/main/java/de/ph87/tools/group/member/GroupMemberService.java b/src/main/java/de/ph87/tools/group/member/GroupMemberService.java
index c742f63..1201435 100644
--- a/src/main/java/de/ph87/tools/group/member/GroupMemberService.java
+++ b/src/main/java/de/ph87/tools/group/member/GroupMemberService.java
@@ -22,8 +22,6 @@ import org.springframework.stereotype.Service;
 import org.springframework.transaction.annotation.Transactional;
 import org.springframework.web.server.ResponseStatusException;
 
-import java.util.function.BiConsumer;
-
 @Slf4j
 @Service
 @Transactional
@@ -62,7 +60,7 @@ public class GroupMemberService {
       // owner cannot remove itself from group
       throw new ResponseStatusException(HttpStatus.BAD_REQUEST);
     }
-    _remove_user_from_group_unchecked(group, user, (g, u) -> log.info("User left Group: user={}, group={}", u, g));
+    _remove_user_from_group_unchecked(group, user);
   }
 
   @NonNull
@@ -74,11 +72,11 @@ public class GroupMemberService {
     return groupMapper.push(group);
   }
 
-  public void _remove_user_from_group_unchecked(@NonNull final Group group, @NonNull final User user, @NonNull final BiConsumer<Group, User> beforePush) {
+  public void _remove_user_from_group_unchecked(@NonNull final Group group, @NonNull final User user) {
     group.getUsers().remove(user);
     group.touch();
     user.touch();
-    beforePush.accept(group, user);
+    log.info("User left Group: user={}, group={}", user, group);
     userPushService.push(user, new GroupLeftEvent(group));
     groupMapper.push(group);
   }
diff --git a/src/main/java/de/ph87/tools/group/owner/GroupOwnerService.java b/src/main/java/de/ph87/tools/group/owner/GroupOwnerService.java
index 88e0c84..6303f99 100644
--- a/src/main/java/de/ph87/tools/group/owner/GroupOwnerService.java
+++ b/src/main/java/de/ph87/tools/group/owner/GroupOwnerService.java
@@ -29,8 +29,6 @@ import org.springframework.stereotype.Service;
 import org.springframework.transaction.annotation.Transactional;
 import org.springframework.web.server.ResponseStatusException;
 
-import java.util.function.BiConsumer;
-
 @Slf4j
 @Service
 @Transactional
@@ -69,12 +67,12 @@ public class GroupOwnerService {
   }
 
   public void kick(@NonNull final UserPrivateUuid privateUuid, @NonNull final GroupUserRequest request) {
-    final OwnerRemoveResult result = _removeUser(privateUuid, request, (group, user) -> log.info("User kicked out of group: user={}, group={}", user, group));
+    final OwnerRemoveResult result = _removeUser(privateUuid, request);
     groupMapper.push(result.group);
   }
 
   public void ban(@NonNull final UserPrivateUuid privateUuid, @NonNull final GroupUserRequest request) {
-    final OwnerRemoveResult result = _removeUser(privateUuid, request, (group, user) -> log.info("User banned from group: user={}, group={}", user, group));
+    final OwnerRemoveResult result = _removeUser(privateUuid, request);
     result.group.getBanned().add(result.kicked);
     groupMapper.push(result.group);
   }
@@ -114,14 +112,14 @@ public class GroupOwnerService {
   }
 
   @NonNull
-  private OwnerRemoveResult _removeUser(@NonNull final UserPrivateUuid privateUuid, @NonNull final GroupUserRequest request, @NonNull final BiConsumer<Group, User> beforePush) {
+  private OwnerRemoveResult _removeUser(@NonNull final UserPrivateUuid privateUuid, @NonNull final GroupUserRequest request) {
     final GroupAccess access = groupAccessService.ownerAccess(privateUuid, request.groupUuid);
     final User user = access.group.getUsers().stream().filter(u -> u.getPublicUuid().equals(request.userPublicUuid)).findFirst().orElseThrow(() -> new ResponseStatusException(HttpStatus.BAD_REQUEST));
     if (user.equals(access.principal)) {
       // owner cannot kick itself from group
       throw new ResponseStatusException(HttpStatus.BAD_REQUEST);
     }
-    groupMemberService._remove_user_from_group_unchecked(access.group, user, beforePush);
+    groupMemberService._remove_user_from_group_unchecked(access.group, user);
     return new OwnerRemoveResult(access, user);
   }
 
diff --git a/src/main/java/de/ph87/tools/tools/numbers/Numbers.java b/src/main/java/de/ph87/tools/tools/numbers/Numbers.java
index 59a48ac..b6b5536 100644
--- a/src/main/java/de/ph87/tools/tools/numbers/Numbers.java
+++ b/src/main/java/de/ph87/tools/tools/numbers/Numbers.java
@@ -25,6 +25,7 @@ public class Numbers extends NumbersAbstract {
 
   @Transient
   @ToString.Exclude
+  @Getter(AccessLevel.NONE)
   private NumbersUuid _uuid;
 
   @NonNull
diff --git a/src/main/java/de/ph87/tools/tools/numbers/NumbersRepository.java b/src/main/java/de/ph87/tools/tools/numbers/NumbersRepository.java
index 06ec9df..0b45da9 100644
--- a/src/main/java/de/ph87/tools/tools/numbers/NumbersRepository.java
+++ b/src/main/java/de/ph87/tools/tools/numbers/NumbersRepository.java
@@ -1,11 +1,14 @@
 package de.ph87.tools.tools.numbers;
 
 import de.ph87.tools.group.Group;
+import de.ph87.tools.user.User;
 import lombok.NonNull;
 import org.springframework.data.domain.Page;
 import org.springframework.data.domain.Pageable;
 import org.springframework.data.repository.ListCrudRepository;
 
+import java.util.List;
+
 public interface NumbersRepository extends ListCrudRepository<Numbers, String> {
 
   @NonNull
@@ -13,4 +16,7 @@ public interface NumbersRepository extends ListCrudRepository<Numbers, String> {
 
   void deleteAllByGroup(@NonNull Group group);
 
+  @NonNull
+  List<Numbers> findAllByLotsUser(@NonNull User user);
+
 }
diff --git a/src/main/java/de/ph87/tools/user/User.java b/src/main/java/de/ph87/tools/user/User.java
index c9a431f..8be1ba8 100644
--- a/src/main/java/de/ph87/tools/user/User.java
+++ b/src/main/java/de/ph87/tools/user/User.java
@@ -24,6 +24,7 @@ public class User extends UserPublicAbstract {
 
   @Transient
   @ToString.Exclude
+  @Getter(AccessLevel.NONE)
   private UserPublicUuid _publicUuid;
 
   @NonNull
@@ -41,6 +42,7 @@ public class User extends UserPublicAbstract {
 
   @Transient
   @ToString.Exclude
+  @Getter(AccessLevel.NONE)
   private UserPrivateUuid _privateUuid;
 
   @NonNull
diff --git a/src/main/java/de/ph87/tools/user/UserPrivateDto.java b/src/main/java/de/ph87/tools/user/UserPrivateDto.java
index e2b5b12..1f053af 100644
--- a/src/main/java/de/ph87/tools/user/UserPrivateDto.java
+++ b/src/main/java/de/ph87/tools/user/UserPrivateDto.java
@@ -35,6 +35,9 @@ public class UserPrivateDto extends UserPublicAbstract {
   @NonNull
   public final ZonedDateTime created;
 
+  @NonNull
+  public final ZonedDateTime lastAccess;
+
   private final boolean password;
 
   private final String email;
@@ -48,6 +51,7 @@ public class UserPrivateDto extends UserPublicAbstract {
     this.privateUuid = user.getPrivateUuid();
     this.name = user.getName();
     this.created = user.getCreated();
+    this.lastAccess = user.getLastAccess();
     this.password = !user.getPassword().isEmpty();
     this.email = obfuscateEmail(user.getEmail());
     this.emailConfirmed = user.isEmailConfirmed();
diff --git a/src/main/java/de/ph87/tools/user/UserRepository.java b/src/main/java/de/ph87/tools/user/UserRepository.java
index 05ff2ff..f99b6c2 100644
--- a/src/main/java/de/ph87/tools/user/UserRepository.java
+++ b/src/main/java/de/ph87/tools/user/UserRepository.java
@@ -2,10 +2,11 @@ package de.ph87.tools.user;
 
 import lombok.NonNull;
 import org.springframework.data.repository.ListCrudRepository;
+import org.springframework.data.repository.PagingAndSortingRepository;
 
 import java.util.Optional;
 
-public interface UserRepository extends ListCrudRepository<User, String> {
+public interface UserRepository extends ListCrudRepository<User, String>, PagingAndSortingRepository<User, String> {
 
   boolean existsByName(@NonNull String name);
 
diff --git a/src/main/java/de/ph87/tools/user/UserService.java b/src/main/java/de/ph87/tools/user/UserService.java
index 8c4708b..1df09da 100644
--- a/src/main/java/de/ph87/tools/user/UserService.java
+++ b/src/main/java/de/ph87/tools/user/UserService.java
@@ -3,7 +3,6 @@ package de.ph87.tools.user;
 import de.ph87.tools.common.uuid.AbstractUuid;
 import de.ph87.tools.email.EmailService;
 import de.ph87.tools.group.GroupMapper;
-import de.ph87.tools.group.GroupRepository;
 import de.ph87.tools.user.push.UserPushService;
 import de.ph87.tools.user.requests.UserLoginRequest;
 import de.ph87.tools.user.uuid.UserPrivateUuid;
@@ -50,8 +49,6 @@ public class UserService {
 
   private final PasswordEncoder passwordEncoder;
 
-  private final GroupRepository groupRepository;
-
   private final UserAccessService userAccessService;
 
   private final GroupMapper groupMapper;
@@ -133,7 +130,7 @@ public class UserService {
       }
       user.setName(name);
       log.info("User name changed: user={}", user);
-      groupRepository.findAllByUsersContains(user).forEach(groupMapper::push);
+      groupMapper.pushAllByUser(user);
     });
   }
 
diff --git a/src/main/java/de/ph87/tools/user/admin/UserAdminController.java b/src/main/java/de/ph87/tools/user/admin/UserAdminController.java
new file mode 100644
index 0000000..91a74ed
--- /dev/null
+++ b/src/main/java/de/ph87/tools/user/admin/UserAdminController.java
@@ -0,0 +1,31 @@
+package de.ph87.tools.user.admin;
+
+import de.ph87.tools.user.UserPrivateDto;
+import de.ph87.tools.user.uuid.UserPrivateUuid;
+import lombok.NonNull;
+import lombok.RequiredArgsConstructor;
+import lombok.extern.slf4j.Slf4j;
+import org.springframework.data.domain.Page;
+import org.springframework.web.bind.annotation.*;
+
+@Slf4j
+@CrossOrigin
+@RestController
+@RequiredArgsConstructor
+@RequestMapping("User/Admin")
+public class UserAdminController {
+
+  private final UserAdminService userAdminService;
+
+  @NonNull
+  @PostMapping("page")
+  public Page<UserPrivateDto> page(@NonNull final UserPrivateUuid privateUuid, @NonNull @RequestBody final UserAdminPageRequest request) {
+    return userAdminService.page(privateUuid, request);
+  }
+
+  @PostMapping("delete")
+  public void delete(@NonNull final UserPrivateUuid privateUuid, @RequestBody @NonNull final String deletePrivateUuid) { // TODO we cannot use UserPrivateUuid for 'deletePrivateUuid' because it would be filled with cookie's UserPrivateUuid
+    userAdminService.delete(privateUuid, new UserPrivateUuid(deletePrivateUuid));
+  }
+
+}
diff --git a/src/main/java/de/ph87/tools/user/admin/UserAdminPageRequest.java b/src/main/java/de/ph87/tools/user/admin/UserAdminPageRequest.java
new file mode 100644
index 0000000..76504d9
--- /dev/null
+++ b/src/main/java/de/ph87/tools/user/admin/UserAdminPageRequest.java
@@ -0,0 +1,48 @@
+package de.ph87.tools.user.admin;
+
+import lombok.AllArgsConstructor;
+import lombok.Getter;
+import lombok.NonNull;
+import lombok.ToString;
+import org.springframework.data.domain.PageRequest;
+import org.springframework.data.domain.Pageable;
+import org.springframework.data.domain.Sort;
+
+import java.util.List;
+
+@Getter
+@ToString
+@AllArgsConstructor
+public class UserAdminPageRequest {
+
+  public final int pageIndex;
+
+  public final int pageSize;
+
+  @NonNull
+  public final List<Order> orders;
+
+  @NonNull
+  public Pageable getPageable() {
+    return PageRequest.of(pageIndex, pageSize, Sort.by(orders.stream().map(Order::toSortOrder).toList()));
+  }
+
+  @Getter
+  @ToString
+  @AllArgsConstructor
+  public static class Order {
+
+    @NonNull
+    public final String property;
+
+    @NonNull
+    public final Sort.Direction direction;
+
+    @NonNull
+    public Sort.Order toSortOrder() {
+      return new Sort.Order(direction, property);
+    }
+
+  }
+
+}
diff --git a/src/main/java/de/ph87/tools/user/admin/UserAdminService.java b/src/main/java/de/ph87/tools/user/admin/UserAdminService.java
new file mode 100644
index 0000000..4395e40
--- /dev/null
+++ b/src/main/java/de/ph87/tools/user/admin/UserAdminService.java
@@ -0,0 +1,75 @@
+package de.ph87.tools.user.admin;
+
+import de.ph87.tools.email.EmailService;
+import de.ph87.tools.group.GroupRepository;
+import de.ph87.tools.group.member.GroupMemberService;
+import de.ph87.tools.group.owner.GroupOwnerService;
+import de.ph87.tools.tools.numbers.NumbersRepository;
+import de.ph87.tools.user.User;
+import de.ph87.tools.user.UserAccessService;
+import de.ph87.tools.user.UserPrivateDto;
+import de.ph87.tools.user.UserRepository;
+import de.ph87.tools.user.uuid.UserPrivateUuid;
+import lombok.NonNull;
+import lombok.RequiredArgsConstructor;
+import lombok.extern.slf4j.Slf4j;
+import org.springframework.data.domain.Page;
+import org.springframework.http.HttpStatus;
+import org.springframework.stereotype.Service;
+import org.springframework.transaction.annotation.Transactional;
+import org.springframework.web.server.ResponseStatusException;
+
+@Slf4j
+@Service
+@Transactional
+@RequiredArgsConstructor
+public class UserAdminService {
+
+  private final UserRepository userRepository;
+
+  private final UserAccessService userAccessService;
+
+  private final GroupRepository groupRepository;
+
+  private final GroupMemberService groupMemberService;
+
+  private final NumbersRepository numbersRepository;
+
+  private final GroupOwnerService groupOwnerService;
+
+  private final EmailService emailService;
+
+  @NonNull
+  public Page<UserPrivateDto> page(@NonNull final UserPrivateUuid privateUuid, @NonNull final UserAdminPageRequest request) {
+    adminAccess(privateUuid);
+    return userRepository.findAll(request.getPageable()).map(UserPrivateDto::new);
+  }
+
+  public void delete(@NonNull final UserPrivateUuid privateUuid, @NonNull final UserPrivateUuid deletePrivateUuid) {
+    adminAccess(privateUuid);
+    final User user = userAccessService.access(deletePrivateUuid);
+    groupRepository.findAllByOwner(user).forEach(group -> groupOwnerService.delete(group.getOwner().getPrivateUuid(), group.getUuid()));
+    groupRepository.findAllByUsersContains(user).forEach(group -> groupMemberService._remove_user_from_group_unchecked(group, user));
+    numbersRepository.findAllByLotsUser(user).forEach(numbers -> numbers.getLots().removeIf(lot -> {
+      if (lot.getUser().equals(user)) {
+        log.info("Deleting NumbersLot: {}", lot);
+        return true;
+      }
+      return false;
+    }));
+    emailService.deleteAllByUser(user);
+    userRepository.delete(user);
+    log.info("User deleted: {}", user);
+  }
+
+  @NonNull
+  @SuppressWarnings("UnusedReturnValue")
+  private User adminAccess(@NonNull final UserPrivateUuid privateUuid) {
+    final User user = userAccessService.access(privateUuid);
+    if (!user.isAdmin()) {
+      throw new ResponseStatusException(HttpStatus.FORBIDDEN);
+    }
+    return user;
+  }
+
+}