The font used in the Family Guy show logo is custom. But it has been replicated as the Family Guy font. You can also call it the Guy Family font. This font is free to download. So you can use it for free for personal and commercial use.

Family Guy is an American adult animated sitcom created by Seth MacFarlane for the Fox Broadcasting Company. The series follows the Griffin family, a dysfunctional family consisting of Peter, the patriarch; Lois, the matriarch; their three children, Meg, Chris, and Stewie; and their talking dog, Brian.

You can also check out Winnie The Pooh, Adventure Time, and Looney Tunes fonts.