You can delete your account from within WhatsApp. Deleting your account is an irreversible process, which we cannot revert even if you perform it by accident.

To delete your account

1. Open WhatsApp.
2. Tap More > settings > account > delete account.
3. Enter your phone number in full international format and tap continue at the bottom of the screen to finish deleting your account.

Deleting your account will

• Delete your account info and profile photo.
• Delete you from all WhatsApp groups.
• Delete your message history on your phone.

If you delete your account:

• You can't regain access to your account.
• It may take up to 90 days to delete data stored in backup systems. Your information isn't accessible on WhatsApp during this time.
• It does not affect the information other users have relating to you, such as their copy of the messages you sent them.
• Copies of some material (e.g., log records) may remain in our database but are disassociated from personal identifiers.
• For legal purposes (e.g., to address fraud and other illegal activity), we may preserve your information. Please refer to the Law and Protection section of our Privacy Policy for more information.
• Your personal information shared with the other Facebook Companies will also be deleted.

Learn how to delete your account on: Android | iPhone