diff --git a/src/modules/event/dto/create-event.dto.ts b/src/modules/event/dto/create-event.dto.ts
new file mode 100644
index 00000000..29ba9a43
--- /dev/null
+++ b/src/modules/event/dto/create-event.dto.ts
@@ -0,0 +1,25 @@
+import { IsString, IsNotEmpty, IsOptional, IsDateString, IsInt, Min } from 'class-validator';
+
+export class CreateEventDto {
+  @IsString()
+  @IsNotEmpty()
+  title: string;
+
+  @IsString()
+  @IsOptional()
+  description?: string;
+
+  @IsString()
+  @IsNotEmpty()
+  location: string;
+
+  @IsDateString()
+  startDate: string;
+
+  @IsDateString()
+  endDate: string;
+
+  @IsInt()
+  @Min(0)
+  capacity: number;
+}
diff --git a/src/modules/event/dto/update-event.dto.ts b/src/modules/event/dto/update-event.dto.ts
new file mode 100644
index 00000000..304f9500
--- /dev/null
+++ b/src/modules/event/dto/update-event.dto.ts
@@ -0,0 +1,4 @@
+import { PartialType } from '@nestjs/mapped-types';
+import { CreateEventDto } from './create-event.dto';
+
+export class UpdateEventDto extends PartialType(CreateEventDto) {}
diff --git a/src/modules/event/event.controller.spec.ts b/src/modules/event/event.controller.spec.ts
new file mode 100644
index 00000000..1fab6d8c
--- /dev/null
+++ b/src/modules/event/event.controller.spec.ts
@@ -0,0 +1,60 @@
+import { Test, TestingModule } from '@nestjs/testing';
+import { EventController } from './event.controller';
+import { EventService } from './event.service';
+import { CreateEventDto } from './dto/create-event.dto';
+import { UpdateEventDto } from './dto/update-event.dto';
+import { User } from '../../user/user.entity';
+
+describe('EventController', () => {
+  let controller: EventController;
+  let service: EventService;
+  const organizer: User = { id: 'org-1', email: 'org@test.com', passwordHash: '', role: 'organizer', createdAt: new Date() };
+
+  const mockService = {
+    create: jest.fn(),
+    findAll: jest.fn(),
+    findOne: jest.fn(),
+    update: jest.fn(),
+  };
+
+  beforeEach(async () => {
+    const module: TestingModule = await Test.createTestingModule({
+      controllers: [EventController],
+      providers: [
+        { provide: EventService, useValue: mockService },
+      ],
+    }).compile();
+    controller = module.get<EventController>(EventController);
+    service = module.get<EventService>(EventService);
+    jest.clearAllMocks();
+  });
+
+  it('should create event', async () => {
+    const dto: CreateEventDto = { title: 't', location: 'l', startDate: '2025-10-01', endDate: '2025-10-02', capacity: 10 } as any;
+    mockService.create.mockResolvedValue({ ...dto, organizer });
+    const req = { user: organizer };
+    const result = await controller.create(dto, req);
+    expect(result.organizer).toBe(organizer);
+  });
+
+  it('should list events', async () => {
+    mockService.findAll.mockResolvedValue([{ id: '1', organizer }]);
+    const req = { user: organizer };
+    const result = await controller.findAll(req);
+    expect(result[0].organizer).toBe(organizer);
+  });
+
+  it('should get event by id', async () => {
+    mockService.findOne.mockResolvedValue({ id: '1', organizer });
+    const req = { user: organizer };
+    const result = await controller.findOne('1', req);
+    expect(result.organizer).toBe(organizer);
+  });
+
+  it('should update event', async () => {
+    mockService.update.mockResolvedValue({ id: '1', organizer, title: 'new' });
+    const req = { user: organizer };
+    const result = await controller.update('1', { title: 'new' } as UpdateEventDto, req);
+    expect(result.title).toBe('new');
+  });
+});
diff --git a/src/modules/event/event.controller.ts b/src/modules/event/event.controller.ts
new file mode 100644
index 00000000..b11611ad
--- /dev/null
+++ b/src/modules/event/event.controller.ts
@@ -0,0 +1,33 @@
+import { Controller, Post, Get, Patch, Param, Body, Request, UseGuards } from '@nestjs/common';
+import { EventService } from './event.service';
+import { CreateEventDto } from './dto/create-event.dto';
+import { UpdateEventDto } from './dto/update-event.dto';
+import { JwtAuthGuard } from '../../auth/jwt-auth.guard';
+import { User } from '../../user/user.entity';
+
+@UseGuards(JwtAuthGuard)
+@Controller('events')
+export class EventController {
+  constructor(private readonly eventService: EventService) {}
+
+  @Post()
+  async create(@Body() createEventDto: CreateEventDto, @Request() req: any) {
+    // Organizer is the authenticated user
+    return this.eventService.create(createEventDto, req.user as User);
+  }
+
+  @Get()
+  async findAll(@Request() req: any) {
+    return this.eventService.findAll(req.user as User);
+  }
+
+  @Get(':id')
+  async findOne(@Param('id') id: string, @Request() req: any) {
+    return this.eventService.findOne(id, req.user as User);
+  }
+
+  @Patch(':id')
+  async update(@Param('id') id: string, @Body() updateEventDto: UpdateEventDto, @Request() req: any) {
+    return this.eventService.update(id, updateEventDto, req.user as User);
+  }
+}
diff --git a/src/modules/event/event.entity.ts b/src/modules/event/event.entity.ts
new file mode 100644
index 00000000..09c0775c
--- /dev/null
+++ b/src/modules/event/event.entity.ts
@@ -0,0 +1,29 @@
+import { Entity, PrimaryGeneratedColumn, Column, ManyToOne } from 'typeorm';
+import { User } from '../../user/user.entity';
+
+@Entity()
+export class Event {
+  @PrimaryGeneratedColumn('uuid')
+  id: string;
+
+  @Column()
+  title: string;
+
+  @Column({ type: 'text', nullable: true })
+  description?: string;
+
+  @Column()
+  location: string;
+
+  @Column({ type: 'timestamp' })
+  startDate: Date;
+
+  @Column({ type: 'timestamp' })
+  endDate: Date;
+
+  @Column({ type: 'int' })
+  capacity: number;
+
+  @ManyToOne(() => User, user => user.id, { eager: true })
+  organizer: User;
+}
diff --git a/src/modules/event/event.module.ts b/src/modules/event/event.module.ts
new file mode 100644
index 00000000..9d3f37a9
--- /dev/null
+++ b/src/modules/event/event.module.ts
@@ -0,0 +1,13 @@
+import { Module } from '@nestjs/common';
+import { TypeOrmModule } from '@nestjs/typeorm';
+import { Event } from './event.entity';
+import { EventService } from './event.service';
+import { EventController } from './event.controller';
+
+@Module({
+  imports: [TypeOrmModule.forFeature([Event])],
+  controllers: [EventController],
+  providers: [EventService],
+  exports: [EventService],
+})
+export class EventModule {}
diff --git a/src/modules/event/event.service.spec.ts b/src/modules/event/event.service.spec.ts
new file mode 100644
index 00000000..a6d9a5e6
--- /dev/null
+++ b/src/modules/event/event.service.spec.ts
@@ -0,0 +1,87 @@
+import { Test, TestingModule } from '@nestjs/testing';
+import { getRepositoryToken } from '@nestjs/typeorm';
+import { EventService } from './event.service';
+import { Event } from './event.entity';
+import { User } from '../../user/user.entity';
+import { Repository } from 'typeorm';
+import { ForbiddenException, NotFoundException } from '@nestjs/common';
+
+describe('EventService', () => {
+  let service: EventService;
+  let repo: Repository<Event>;
+  const mockRepo = {
+    create: jest.fn(),
+    save: jest.fn(),
+    find: jest.fn(),
+    findOne: jest.fn(),
+  };
+  const organizer: User = { id: 'org-1', email: 'org@test.com', passwordHash: '', role: 'organizer', createdAt: new Date() };
+
+  beforeEach(async () => {
+    const module: TestingModule = await Test.createTestingModule({
+      providers: [
+        EventService,
+        { provide: getRepositoryToken(Event), useValue: mockRepo },
+      ],
+    }).compile();
+    service = module.get<EventService>(EventService);
+    repo = module.get<Repository<Event>>(getRepositoryToken(Event));
+    jest.clearAllMocks();
+  });
+
+  it('should create event with valid data', async () => {
+    const dto = { title: 't', location: 'l', startDate: '2025-10-01', endDate: '2025-10-02', capacity: 10 };
+    mockRepo.create.mockReturnValue({ ...dto, organizer });
+    mockRepo.save.mockResolvedValue({ ...dto, organizer, id: '1' });
+    const result = await service.create(dto as any, organizer);
+    expect(result.organizer).toBe(organizer);
+    expect(mockRepo.save).toHaveBeenCalled();
+  });
+
+  it('should throw if startDate >= endDate', async () => {
+    const dto = { title: 't', location: 'l', startDate: '2025-10-02', endDate: '2025-10-01', capacity: 10 };
+    await expect(service.create(dto as any, organizer)).rejects.toThrow(ForbiddenException);
+  });
+
+  it('should throw if capacity < 0', async () => {
+    const dto = { title: 't', location: 'l', startDate: '2025-10-01', endDate: '2025-10-02', capacity: -1 };
+    await expect(service.create(dto as any, organizer)).rejects.toThrow(ForbiddenException);
+  });
+
+  it('should find all events for organizer', async () => {
+    mockRepo.find.mockResolvedValue([{ id: '1', organizer }]);
+    const result = await service.findAll(organizer);
+    expect(result[0].organizer).toBe(organizer);
+  });
+
+  it('should find one event for organizer', async () => {
+    mockRepo.findOne.mockResolvedValue({ id: '1', organizer });
+    const result = await service.findOne('1', organizer);
+    expect(result.organizer).toBe(organizer);
+  });
+
+  it('should throw NotFound if event not found', async () => {
+    mockRepo.findOne.mockResolvedValue(undefined);
+    await expect(service.findOne('1', organizer)).rejects.toThrow(NotFoundException);
+  });
+
+  it('should update event with valid data', async () => {
+    const event = { id: '1', organizer, startDate: new Date('2025-10-01'), endDate: new Date('2025-10-02'), capacity: 10 };
+    mockRepo.findOne.mockResolvedValue(event);
+    mockRepo.save.mockResolvedValue({ ...event, title: 'new' });
+    const result = await service.update('1', { title: 'new' }, organizer);
+    expect(result.title).toBe('new');
+  });
+
+  it('should throw if update has invalid dates', async () => {
+    const event = { id: '1', organizer, startDate: new Date('2025-10-01'), endDate: new Date('2025-10-02'), capacity: 10 };
+    mockRepo.findOne.mockResolvedValue(event);
+    await expect(service.update('1', { startDate: '2025-10-03', endDate: '2025-10-02' }, organizer)).rejects.toThrow(ForbiddenException);
+  });
+
+  it('should throw if update has negative capacity', async () => {
+    const event = { id: '1', organizer, startDate: new Date('2025-10-01'), endDate: new Date('2025-10-02'), capacity: 10 };
+    mockRepo.findOne.mockResolvedValue(event);
+    await expect(service.update('1', { capacity: -5 }, organizer)).rejects.toThrow(ForbiddenException);
+  });
+});
diff --git a/src/modules/event/event.service.ts b/src/modules/event/event.service.ts
new file mode 100644
index 00000000..e5594d62
--- /dev/null
+++ b/src/modules/event/event.service.ts
@@ -0,0 +1,50 @@
+import { Injectable, NotFoundException, ForbiddenException } from '@nestjs/common';
+import { InjectRepository } from '@nestjs/typeorm';
+import { Repository } from 'typeorm';
+import { Event } from './event.entity';
+import { CreateEventDto } from './dto/create-event.dto';
+import { UpdateEventDto } from './dto/update-event.dto';
+import { User } from '../../user/user.entity';
+
+@Injectable()
+export class EventService {
+  constructor(
+    @InjectRepository(Event)
+    private eventRepository: Repository<Event>,
+  ) {}
+
+  async create(createEventDto: CreateEventDto, organizer: User): Promise<Event> {
+    if (new Date(createEventDto.startDate) >= new Date(createEventDto.endDate)) {
+      throw new ForbiddenException('Start date must be before end date');
+    }
+    if (createEventDto.capacity < 0) {
+      throw new ForbiddenException('Capacity must be non-negative');
+    }
+    const event = this.eventRepository.create({ ...createEventDto, organizer });
+    return this.eventRepository.save(event);
+  }
+
+  async findAll(organizer: User): Promise<Event[]> {
+    return this.eventRepository.find({ where: { organizer } });
+  }
+
+  async findOne(id: string, organizer: User): Promise<Event> {
+    const event = await this.eventRepository.findOne({ where: { id, organizer } });
+    if (!event) throw new NotFoundException('Event not found');
+    return event;
+  }
+
+  async update(id: string, updateEventDto: UpdateEventDto, organizer: User): Promise<Event> {
+    const event = await this.findOne(id, organizer);
+    if (updateEventDto.startDate && updateEventDto.endDate) {
+      if (new Date(updateEventDto.startDate) >= new Date(updateEventDto.endDate)) {
+        throw new ForbiddenException('Start date must be before end date');
+      }
+    }
+    if (updateEventDto.capacity !== undefined && updateEventDto.capacity < 0) {
+      throw new ForbiddenException('Capacity must be non-negative');
+    }
+    Object.assign(event, updateEventDto);
+    return this.eventRepository.save(event);
+  }
+}