Remove your account from:

Enter the name of the social network

How to delete a Gravatar account?

Delete your Gravatar account

The description of the service:

Gravatar a portmanteau of globally recognized avatar is a service for providing globally unique avatars. On Gravatar, users can register an account based on their email address, and upload a digital avatar to be associated with the account. Gravatar plugins are available for popular blogging software; when the user posts a comment on such a blog that requires an email address, the blogging software checks whether that email address has an associated avatar at Gravatar.

Deletion complexity:

Not possible

You can't delete your Gravatar Account without deleting your entire WordPress Account.

Direct links to delete: