Anton Gartman is a minor antagonist in Stuart Little. He is a boat racer who is George's arch-rival and bully.

Anton is only seen at the boat race, where he spots George and taunts him for his boat stating "Someone's got to finish last". Later, when Stuart accidentally breaks the remote control to George's boat, Anton and some of his friends nearby start laughing. Later, during the race it is clear that Anton will stop at nothing to win the race and thus begins purposefully colliding his boat i