I don't want certain people friend requesting me?

[Gaurav Sharma]

Change who can look you up by name. Set it to only friends so that only friends can search for you. You can also customize the settings so that only you can search for yourself by name, preventing anyone from searching for you.

Change who can look you up by email and phone number. Set it to only friends so that only friends can search for you by email or the phone number linked to your Facebook.

Change who can send you friend requests. Unfortunately, you cannot prevent anyone from sending you requests. However, limiting the ability to Friends of Friends will decrease the likelihood of receiving a friend request from some random. Restricting the people who can search for you have prevented people from being able to find you on search, greatly minimizing the likelihood that people will be able to find you.