If you want to delete your Facebook account, follow these simple steps:
>> First of all, click on this link: https://www.facebook.com/help/delete_account.
>> Then Facebook will ask your username and password, then provide this information and select “login”.
>> Then a window will appear and select “delete my account” option from that window.
After performing these steps, your account will be deleted. If you want Facebook to permanently delete your account, don’t try to login to your account for two weeks.