So, how to delete fake Facebook account?
First off, you need to figure if it is your own fake account or created by someone else you know. If the fake account is created by you, go to Settings > Account Settings > General > Deactivate. However, if it is an account created by somebody else then go to the profile, select more on the right under their Cover Photo > Report > Report this profile > They’re pretending to be me or someone I know or This is a fake account > submit to Facebook for review. If the account is of someone you know, you can check the status of the reports via the help centre. Go to Settings> Help centre and scroll down to support inbox. To know more about how to delete fake Facebook account created by others, watch this video https://www.youtube.com/watch?v=Xpnb-2yYAAo