Justin Beardfish is a character who appears in the book SpongeBob Tees Off.
He is a teenage fish who wears a yellow shirt, a brown coat, and blue slacks. He has freckles and long, red hair combed over his forehead.
In SpongeBob Tees Off, he is one of several celebrities who visits Bikini Bottom. When he enters the Bikini Bottom Shell Club to watch Annika Swordfish's golfing tournament, a crowd of fans surrounds him, asking for pictures and interviews. He is a friend of Grubby Grouper and Jessica Albacore.
- Justin Beardfish's name and hairstyle are a parody of Justin Bieber, a Canadian singer.