diff --git a/src/api/controllers/chat.controller.ts b/src/api/controllers/chat.controller.ts
index a1f289cf2b..6a561c0285 100644
--- a/src/api/controllers/chat.controller.ts
+++ b/src/api/controllers/chat.controller.ts
@@ -13,6 +13,7 @@ import {
   ProfileStatusDto,
   ReadMessageDto,
   SendPresenceDto,
+  UpdateContactDto,
   UpdateMessageDto,
   WhatsAppNumberDto,
 } from '@api/dto/chat.dto';
@@ -104,6 +105,10 @@ export class ChatController {
     return await this.waMonitor.waInstances[instanceName].updateProfileName(data.name);
   }
 
+  public async updateContact({ instanceName }: InstanceDto, data: UpdateContactDto) {
+    return await this.waMonitor.waInstances[instanceName].updateContact(data);
+  }
+
   public async updateProfileStatus({ instanceName }: InstanceDto, data: ProfileStatusDto) {
     return await this.waMonitor.waInstances[instanceName].updateProfileStatus(data.status);
   }
diff --git a/src/api/dto/chat.dto.ts b/src/api/dto/chat.dto.ts
index 9c6be9f4c9..807153335d 100644
--- a/src/api/dto/chat.dto.ts
+++ b/src/api/dto/chat.dto.ts
@@ -51,6 +51,13 @@ export class ProfileNameDto {
   name: string;
 }
 
+export class UpdateContactDto {
+  number: string;
+  fullName: string;
+  firstName?: string;
+  saveOnPrimaryAddressbook?: boolean;
+}
+
 export class ProfileStatusDto {
   status: string;
 }
diff --git a/src/api/integrations/channel/whatsapp/whatsapp.baileys.service.ts b/src/api/integrations/channel/whatsapp/whatsapp.baileys.service.ts
index 22839fd451..5f44568455 100644
--- a/src/api/integrations/channel/whatsapp/whatsapp.baileys.service.ts
+++ b/src/api/integrations/channel/whatsapp/whatsapp.baileys.service.ts
@@ -13,6 +13,7 @@ import {
   PrivacySettingDto,
   ReadMessageDto,
   SendPresenceDto,
+  UpdateContactDto,
   UpdateMessageDto,
   WhatsAppNumberDto,
 } from '@api/dto/chat.dto';
@@ -118,6 +119,7 @@ import makeWASocket, {
   isJidBroadcast,
   isJidGroup,
   isJidNewsletter,
+  isLidUser,
   isPnUser,
   jidNormalizedUser,
   makeCacheableSignalKeyStore,
@@ -4541,6 +4543,75 @@ export class BaileysStartupService extends ChannelStartupService {
     }
   }
 
+  public async updateContact(data: UpdateContactDto) {
+    const jid = createJid(data.number);
+
+    if (isJidGroup(jid) || isJidNewsletter(jid) || isJidBroadcast(jid)) {
+      throw new BadRequestException('Only individual contacts can be updated');
+    }
+
+    let pnJid: string | null = null;
+    let lidJid: string | null = null;
+
+    if (isLidUser(jid)) {
+      lidJid = jid;
+    } else {
+      const onWhatsapp = (await this.whatsappNumber({ numbers: [jid] }))?.shift();
+
+      if (!onWhatsapp?.exists) {
+        throw new BadRequestException(onWhatsapp);
+      }
+
+      if (isLidUser(onWhatsapp.jid)) {
+        lidJid = onWhatsapp.jid;
+      } else {
+        pnJid = onWhatsapp.jid;
+      }
+    }
+
+    const lidMapping = this.client.signalRepository.lidMapping;
+    if (!pnJid) {
+      const pn = await lidMapping.getPNForLID(lidJid);
+      pnJid = pn ? jidNormalizedUser(pn) : isPnUser(jid) ? jid : null;
+    }
+    if (!lidJid) {
+      const lid = await lidMapping.getLIDForPN(pnJid);
+      lidJid = lid ? jidNormalizedUser(lid) : null;
+    }
+
+    if (!pnJid) {
+      throw new BadRequestException(`No phone number is known for ${lidJid}`);
+    }
+
+    // Same shape the phone uses when it syncs a contact: the phone number JID
+    // goes in the patch index and the LID travels inside the action.
+    const contact: proto.SyncActionValue.IContactAction = { fullName: data.fullName };
+    if (data.firstName) contact.firstName = data.firstName;
+    if (lidJid) contact.lidJid = lidJid;
+    if (data.saveOnPrimaryAddressbook !== undefined) {
+      contact.saveOnPrimaryAddressbook = data.saveOnPrimaryAddressbook;
+    }
+
+    try {
+      await this.client.addOrEditContact(pnJid, contact);
+    } catch (error) {
+      throw new InternalServerErrorException('Error updating contact', error.toString());
+    }
+
+    // emitOwnEvents is off, so Baileys will not echo this change back to us.
+    await this.contactHandle['contacts.update']([{ id: pnJid, name: data.fullName }]);
+
+    // Chats that arrived addressed to the LID keep their own contact row.
+    if (lidJid && this.configService.get<Database>('DATABASE').SAVE_DATA.CONTACTS) {
+      await this.prismaRepository.contact.updateMany({
+        where: { remoteJid: lidJid, instanceId: this.instanceId },
+        data: { pushName: data.fullName },
+      });
+    }
+
+    return { update: 'success', remoteJid: pnJid, lid: lidJid, fullName: data.fullName };
+  }
+
   public async updateProfileStatus(status: string) {
     try {
       await this.client.updateProfileStatus(status);
diff --git a/src/api/routes/chat.router.ts b/src/api/routes/chat.router.ts
index 86f4d65bee..4764726906 100644
--- a/src/api/routes/chat.router.ts
+++ b/src/api/routes/chat.router.ts
@@ -14,6 +14,7 @@ import {
   ProfileStatusDto,
   ReadMessageDto,
   SendPresenceDto,
+  UpdateContactDto,
   UpdateMessageDto,
   WhatsAppNumberDto,
 } from '@api/dto/chat.dto';
@@ -39,6 +40,7 @@ import {
   profileSchema,
   profileStatusSchema,
   readMessageSchema,
+  updateContactSchema,
   updateMessageSchema,
   whatsappNumberSchema,
 } from '@validate/validate.schema';
@@ -257,6 +259,16 @@ export class ChatRouter extends RouterBroker {
 
         return res.status(HttpStatus.OK).json(response);
       })
+      .post(this.routerPath('updateContact'), ...guards, async (req, res) => {
+        const response = await this.dataValidate<UpdateContactDto>({
+          request: req,
+          schema: updateContactSchema,
+          ClassRef: UpdateContactDto,
+          execute: (instance, data) => chatController.updateContact(instance, data),
+        });
+
+        return res.status(HttpStatus.OK).json(response);
+      })
       .post(this.routerPath('updateProfileStatus'), ...guards, async (req, res) => {
         const response = await this.dataValidate<ProfileStatusDto>({
           request: req,
diff --git a/src/validate/chat.schema.ts b/src/validate/chat.schema.ts
index 6677b652fd..ebbb278ed6 100644
--- a/src/validate/chat.schema.ts
+++ b/src/validate/chat.schema.ts
@@ -319,6 +319,19 @@ export const profileNameSchema: JSONSchema7 = {
   ...isNotEmpty('name'),
 };
 
+export const updateContactSchema: JSONSchema7 = {
+  $id: v4(),
+  type: 'object',
+  properties: {
+    number: { type: 'string' },
+    fullName: { type: 'string' },
+    firstName: { type: 'string' },
+    saveOnPrimaryAddressbook: { type: 'boolean' },
+  },
+  required: ['number', 'fullName'],
+  ...isNotEmpty('number', 'fullName'),
+};
+
 export const profileStatusSchema: JSONSchema7 = {
   $id: v4(),
   type: 'object',