If someone created a account pretending to be one of your friends, tell your friend to report this to us by clicking the Report/Block link on the impostor profile (timeline). Learn more about report links.
Note: If you’re trying to file a report on behalf of someone who doesn’t have a Facebook account, have the real person contact us through our Help Center. Our Help Center is available to everyone. You can get to it by clicking the Help link on the bottom of our login page or by typing www.facebook.com/help into your browser.