diff --git a/prisma/schema.prisma b/prisma/schema.prisma
index dfb9442..51b38b4 100644
--- a/prisma/schema.prisma
+++ b/prisma/schema.prisma
@@ -106,6 +106,9 @@ model User {
   notificationPreferences Json? // { email: {...}, push: {...} }
   privacyPreferences      Json? // { privacySettings: {...}, dataSettings: {...} }
 
+  // Push Notification Tokens
+  fcmTokens               Json? // [{ token, device, createdAt }]
+
   // Timestamps
   createdAt         DateTime     @default(now())
   updatedAt         DateTime     @updatedAt
diff --git a/src/app.module.ts b/src/app.module.ts
index 259dd9a..6db9b1b 100644
--- a/src/app.module.ts
+++ b/src/app.module.ts
@@ -17,6 +17,7 @@ import { ProfileFieldsModule } from './profile-fields';
 import { ConnectionRequestsModule } from './connection-requests';
 import { MessagesModule } from './messages';
 import { CmsModule } from './cms';
+import { NotificationsModule } from './notifications';
 import { AppController } from './app.controller';
 import { AppService } from './app.service';
 
@@ -57,6 +58,7 @@ import { AppService } from './app.service';
     ConnectionRequestsModule,
     MessagesModule,
     CmsModule,
+    NotificationsModule,
   ],
   controllers: [AppController],
   providers: [
diff --git a/src/connection-requests/connection-requests.service.ts b/src/connection-requests/connection-requests.service.ts
index d4f310c..096117b 100644
--- a/src/connection-requests/connection-requests.service.ts
+++ b/src/connection-requests/connection-requests.service.ts
@@ -5,13 +5,17 @@ import {
   ForbiddenException,
   BadRequestException,
 } from '@nestjs/common';
+import { EventEmitter2 } from '@nestjs/event-emitter';
 import { PrismaService } from '../prisma/prisma.service';
 import { ConnectionStatus } from '@prisma/client';
 import { CreateConnectionRequestDto, RespondConnectionRequestDto } from './dto';
 
 @Injectable()
 export class ConnectionRequestsService {
-  constructor(private prisma: PrismaService) {}
+  constructor(
+    private prisma: PrismaService,
+    private eventEmitter: EventEmitter2,
+  ) {}
 
   /**
    * Create a new connection request from user to agent
@@ -66,7 +70,7 @@ export class ConnectionRequestsService {
       }
       if (existingRequest.status === ConnectionStatus.REJECTED) {
         // Allow re-requesting after rejection by updating the existing request
-        return this.prisma.connectionRequest.update({
+        const updated = await this.prisma.connectionRequest.update({
           where: { id: existingRequest.id },
           data: {
             status: ConnectionStatus.PENDING,
@@ -85,11 +89,28 @@ export class ConnectionRequestsService {
             },
           },
         });
+
+        // Get sender name for notification
+        const userProfile = await this.prisma.userProfile.findUnique({
+          where: { userId },
+          select: { firstName: true, lastName: true },
+        });
+        const senderName = userProfile
+          ? `${userProfile.firstName || ''} ${userProfile.lastName || ''}`.trim()
+          : 'A user';
+
+        this.eventEmitter.emit('notification.connection_request', {
+          recipientUserId: agentProfile.userId,
+          senderName,
+          connectionRequestId: updated.id,
+        });
+
+        return updated;
       }
     }
 
     // Create new connection request
-    return this.prisma.connectionRequest.create({
+    const request = await this.prisma.connectionRequest.create({
       data: {
         userId,
         agentProfileId: dto.agentProfileId,
@@ -105,8 +126,30 @@ export class ConnectionRequestsService {
             avatar: true,
           },
         },
+        user: {
+          select: {
+            userProfile: {
+              select: { firstName: true, lastName: true },
+            },
+          },
+        },
       },
     });
+
+    // Emit push notification event for the agent
+    const senderName = request.user?.userProfile
+      ? `${request.user.userProfile.firstName || ''} ${request.user.userProfile.lastName || ''}`.trim()
+      : 'A user';
+
+    this.eventEmitter.emit('notification.connection_request', {
+      recipientUserId: agentProfile.userId,
+      senderName,
+      connectionRequestId: request.id,
+    });
+
+    // Remove user data from response (not needed by caller)
+    const { user: _user, ...result } = request;
+    return result;
   }
 
   /**
diff --git a/src/messages/messages.gateway.ts b/src/messages/messages.gateway.ts
index 265015f..46fb0d6 100644
--- a/src/messages/messages.gateway.ts
+++ b/src/messages/messages.gateway.ts
@@ -10,6 +10,7 @@ import {
 import { Server, Socket } from 'socket.io';
 import { JwtService } from '@nestjs/jwt';
 import { ConfigService } from '@nestjs/config';
+import { EventEmitter2 } from '@nestjs/event-emitter';
 import { MessagesService } from './messages.service';
 import { CreateMessageDto } from './dto';
 import { Logger } from '@nestjs/common';
@@ -37,6 +38,7 @@ export class MessagesGateway implements OnGatewayConnection, OnGatewayDisconnect
     private readonly messagesService: MessagesService,
     private readonly jwtService: JwtService,
     private readonly configService: ConfigService,
+    private readonly eventEmitter: EventEmitter2,
   ) {}
 
   /**
@@ -186,6 +188,19 @@ export class MessagesGateway implements OnGatewayConnection, OnGatewayDisconnect
           ? participants.agentUserId
           : participants.userId;
         this.sendToUser(otherUserId, 'new_message', message);
+
+        // Emit push notification event
+        const senderProfile = message.sender?.agentProfile || message.sender?.userProfile;
+        const senderName = senderProfile
+          ? `${senderProfile.firstName || ''} ${senderProfile.lastName || ''}`.trim()
+          : 'Someone';
+
+        this.eventEmitter.emit('notification.message', {
+          recipientUserId: otherUserId,
+          senderName,
+          messagePreview: data.message.content?.substring(0, 100) || '',
+          conversationId: data.conversationId,
+        });
       }
 
       return { success: true, message };
diff --git a/src/notifications/dto/register-token.dto.ts b/src/notifications/dto/register-token.dto.ts
new file mode 100644
index 0000000..4673cb4
--- /dev/null
+++ b/src/notifications/dto/register-token.dto.ts
@@ -0,0 +1,21 @@
+import { IsString, IsNotEmpty, IsOptional } from 'class-validator';
+import { ApiProperty, ApiPropertyOptional } from '@nestjs/swagger';
+
+export class RegisterTokenDto {
+  @ApiProperty({ description: 'FCM registration token' })
+  @IsString()
+  @IsNotEmpty()
+  token: string;
+
+  @ApiPropertyOptional({ description: 'Device identifier', default: 'web' })
+  @IsString()
+  @IsOptional()
+  device?: string = 'web';
+}
+
+export class RemoveTokenDto {
+  @ApiProperty({ description: 'FCM registration token to remove' })
+  @IsString()
+  @IsNotEmpty()
+  token: string;
+}
diff --git a/src/notifications/index.ts b/src/notifications/index.ts
new file mode 100644
index 0000000..61660f3
--- /dev/null
+++ b/src/notifications/index.ts
@@ -0,0 +1,3 @@
+export * from './notifications.module';
+export * from './notifications.service';
+export * from './notifications.controller';
diff --git a/src/notifications/notifications.controller.ts b/src/notifications/notifications.controller.ts
new file mode 100644
index 0000000..295f867
--- /dev/null
+++ b/src/notifications/notifications.controller.ts
@@ -0,0 +1,57 @@
+import {
+  Controller,
+  Post,
+  Delete,
+  Body,
+  UseGuards,
+  HttpCode,
+  HttpStatus,
+} from '@nestjs/common';
+import {
+  ApiTags,
+  ApiOperation,
+  ApiResponse,
+  ApiBearerAuth,
+} from '@nestjs/swagger';
+import { JwtAuthGuard } from '../auth/guards';
+import { CurrentUser } from '../auth/decorators';
+import { NotificationsService } from './notifications.service';
+import { RegisterTokenDto, RemoveTokenDto } from './dto/register-token.dto';
+
+@ApiTags('Notifications')
+@Controller('notifications')
+@UseGuards(JwtAuthGuard)
+@ApiBearerAuth('JWT-auth')
+export class NotificationsController {
+  constructor(
+    private readonly notificationsService: NotificationsService,
+  ) {}
+
+  @Post('fcm-token')
+  @HttpCode(HttpStatus.OK)
+  @ApiOperation({ summary: 'Register FCM token for push notifications' })
+  @ApiResponse({ status: 200, description: 'Token registered' })
+  async registerToken(
+    @CurrentUser('id') userId: string,
+    @Body() dto: RegisterTokenDto,
+  ) {
+    await this.notificationsService.registerToken(
+      userId,
+      dto.token,
+      dto.device,
+    );
+    return null;
+  }
+
+  @Delete('fcm-token')
+  @HttpCode(HttpStatus.OK)
+  @ApiOperation({ summary: 'Remove FCM token' })
+  @ApiResponse({ status: 200, description: 'Token removed' })
+  async removeToken(
+    @CurrentUser('id') userId: string,
+    @Body() dto: RemoveTokenDto,
+  ) {
+    await this.notificationsService.removeToken(userId, dto.token);
+    return null;
+  }
+}
diff --git a/src/notifications/notifications.module.ts b/src/notifications/notifications.module.ts
new file mode 100644
index 0000000..917d4b4
--- /dev/null
+++ b/src/notifications/notifications.module.ts
@@ -0,0 +1,12 @@
+import { Module } from '@nestjs/common';
+import { ConfigModule } from '@nestjs/config';
+import { NotificationsService } from './notifications.service';
+import { NotificationsController } from './notifications.controller';
+
+@Module({
+  imports: [ConfigModule],
+  controllers: [NotificationsController],
+  providers: [NotificationsService],
+  exports: [NotificationsService],
+})
+export class NotificationsModule {}
diff --git a/src/notifications/notifications.service.ts b/src/notifications/notifications.service.ts
new file mode 100644
index 0000000..e170ead
--- /dev/null
+++ b/src/notifications/notifications.service.ts
@@ -0,0 +1,231 @@
+import { Injectable, Logger, OnModuleInit } from '@nestjs/common';
+import { ConfigService } from '@nestjs/config';
+import { OnEvent } from '@nestjs/event-emitter';
+import * as admin from 'firebase-admin';
+import { PrismaService } from '../prisma/prisma.service';
+
+interface FcmToken {
+  token: string;
+  device: string;
+  createdAt: string;
+}
+
+interface NotificationPayload {
+  title: string;
+  body: string;
+  data?: Record<string, string>;
+}
+
+@Injectable()
+export class NotificationsService implements OnModuleInit {
+  private readonly logger = new Logger(NotificationsService.name);
+  private firebaseInitialized = false;
+
+  constructor(
+    private readonly prisma: PrismaService,
+    private readonly configService: ConfigService,
+  ) {}
+
+  onModuleInit() {
+    const projectId = this.configService.get<string>('firebase.projectId');
+    const clientEmail = this.configService.get<string>('firebase.clientEmail');
+    const privateKey = this.configService.get<string>('firebase.privateKey');
+
+    if (!projectId || !clientEmail || !privateKey) {
+      this.logger.warn(
+        'Firebase credentials not configured. Push notifications disabled.',
+      );
+      return;
+    }
+
+    if (admin.apps.length === 0) {
+      admin.initializeApp({
+        credential: admin.credential.cert({
+          projectId,
+          clientEmail,
+          privateKey,
+        }),
+      });
+    }
+
+    this.firebaseInitialized = true;
+    this.logger.log('Firebase Admin initialized for push notifications');
+  }
+
+  async registerToken(
+    userId: string,
+    token: string,
+    device: string = 'web',
+  ): Promise<void> {
+    const user = await this.prisma.user.findUnique({
+      where: { id: userId },
+      select: { fcmTokens: true },
+    });
+
+    const existingTokens: FcmToken[] = (user?.fcmTokens as FcmToken[]) || [];
+
+    // Remove existing entry for this token (if re-registering)
+    const filtered = existingTokens.filter((t) => t.token !== token);
+
+    filtered.push({
+      token,
+      device,
+      createdAt: new Date().toISOString(),
+    });
+
+    await this.prisma.user.update({
+      where: { id: userId },
+      data: { fcmTokens: filtered },
+    });
+
+    this.logger.log(`FCM token registered for user ${userId} (${device})`);
+  }
+
+  async removeToken(userId: string, token: string): Promise<void> {
+    const user = await this.prisma.user.findUnique({
+      where: { id: userId },
+      select: { fcmTokens: true },
+    });
+
+    const existingTokens: FcmToken[] = (user?.fcmTokens as FcmToken[]) || [];
+    const filtered = existingTokens.filter((t) => t.token !== token);
+
+    await this.prisma.user.update({
+      where: { id: userId },
+      data: { fcmTokens: filtered.length > 0 ? filtered : null },
+    });
+
+    this.logger.log(`FCM token removed for user ${userId}`);
+  }
+
+  async sendPushNotification(
+    userId: string,
+    category: string,
+    payload: NotificationPayload,
+  ): Promise<void> {
+    if (!this.firebaseInitialized) {
+      this.logger.debug('Firebase not initialized, skipping push notification');
+      return;
+    }
+
+    // Check user notification preferences
+    const user = await this.prisma.user.findUnique({
+      where: { id: userId },
+      select: { notificationPreferences: true, fcmTokens: true },
+    });
+
+    if (!user) return;
+
+    // Check if inApp notifications are enabled for this category
+    const prefs = user.notificationPreferences as Record<string, any> | null;
+    if (prefs?.notifications?.[category]?.inApp === false) {
+      this.logger.debug(
+        `Push notification skipped for user ${userId}: ${category} inApp disabled`,
+      );
+      return;
+    }
+
+    const tokens: FcmToken[] = (user.fcmTokens as FcmToken[]) || [];
+    if (tokens.length === 0) {
+      this.logger.debug(`No FCM tokens for user ${userId}`);
+      return;
+    }
+
+    const tokenStrings = tokens.map((t) => t.token);
+
+    try {
+      const response = await admin.messaging().sendEachForMulticast({
+        tokens: tokenStrings,
+        notification: {
+          title: payload.title,
+          body: payload.body,
+        },
+        data: payload.data || {},
+        webpush: {
+          fcmOptions: {
+            link: payload.data?.link || '/',
+          },
+        },
+      });
+
+      // Clean up invalid tokens
+      if (response.failureCount > 0) {
+        const invalidTokens: string[] = [];
+        response.responses.forEach((resp, idx) => {
+          if (
+            !resp.success &&
+            resp.error?.code === 'messaging/registration-token-not-registered'
+          ) {
+            invalidTokens.push(tokenStrings[idx]);
+          }
+        });
+
+        if (invalidTokens.length > 0) {
+          const validTokens = tokens.filter(
+            (t) => !invalidTokens.includes(t.token),
+          );
+          await this.prisma.user.update({
+            where: { id: userId },
+            data: {
+              fcmTokens: validTokens.length > 0 ? validTokens : null,
+            },
+          });
+          this.logger.log(
+            `Removed ${invalidTokens.length} invalid FCM tokens for user ${userId}`,
+          );
+        }
+      }
+
+      this.logger.log(
+        `Push notification sent to user ${userId}: ${response.successCount} success, ${response.failureCount} failed`,
+      );
+    } catch (error) {
+      this.logger.error(
+        `Failed to send push notification to user ${userId}: ${error.message}`,
+      );
+    }
+  }
+
+  // ==========================================
+  // EVENT LISTENERS
+  // ==========================================
+
+  @OnEvent('notification.message')
+  async handleMessageNotification(event: {
+    recipientUserId: string;
+    senderName: string;
+    messagePreview: string;
+    conversationId: string;
+  }) {
+    await this.sendPushNotification(event.recipientUserId, 'message_updates', {
+      title: `New message from ${event.senderName}`,
+      body: event.messagePreview || 'You have a new message',
+      data: {
+        type: 'message',
+        conversationId: event.conversationId,
+        link: `/messages?conversation=${event.conversationId}`,
+      },
+    });
+  }
+
+  @OnEvent('notification.connection_request')
+  async handleConnectionRequestNotification(event: {
+    recipientUserId: string;
+    senderName: string;
+    connectionRequestId: string;
+  }) {
+    await this.sendPushNotification(
+      event.recipientUserId,
+      'new_lead_alerts',
+      {
+        title: 'New Connection Request',
+        body: `${event.senderName} wants to connect with you`,
+        data: {
+          type: 'connection_request',
+          connectionRequestId: event.connectionRequestId,
+          link: '/dashboard/connections',
+        },
+      },
+    );
+  }
+}