"Figglehorn", which you should have known to post this question.
Other answer by CP1st4eva:
Figglehorn is his last name, unless you thought it was his middle name.
His real name is Lucas Cruikshank
"Figglehorn". I think you know that, however.
Fred's creator is Lucas Alan Cruikshank.
Check the related links below.
Lucas Cruikshank
"Fred on Halloween".
Fred Figglehorns password is unknown.
It is Fred:the movie
Fred Figglehorn.com
He wants to marry Judy
12727 the jungle way
ice cream and pizza
Lucas Cruikshank's middle name is Alan. Lucas Alan Cruikshank.