How do I re-add a deleted friend on facebook?

[Lady Ramone]

You say you can't find their name in an application?

Suppose someone doesn't appear in a search on Facebook. They will still appear in Facebook applications (unless they block the application).

Your friend may have noticed that you removed him or her from your friend list and may feel a little upset about it. OR they may have edited privacy settings so that they don't appear in a search.

But if you don't see them on mutual friend lists---you may either be blocked or they may have certain privacy settings that prevent anyone who is not their friend from seeing their name/profile.

Try emailing them and explaining how it was an accident---joke around in a way that says "Of course I wouldn't take you off my list, you're my buddy." Most of all, let them know you didn't mean to do it.