Ashton Rules Teen Choice Awards
Over the years, Kutcher has been a perennial favorite, winning 11 of the awards, more than anyone else.
His two others this year were for best rock-star moment, in A Lot Like Love, and as favorite male TV personality, for Punk'd.
In terms of movies, the big winner was the tearjerker The Notebook, which took prizes in eight categories, including those for its young male lead, Ryan Gosling, as actor in a drama, and for his costar, Rachel McAdams, as actress in a drama.
The duo also took top honors for best movie chemistry, and their rain-soaked smooch onscreen was named best movie liplock and best movie love scene.
Awards in special categories also went to female hottie Rachel Bilson, male hottie Chad Michael Murray and "It Girl" Alexis Bledel.
The awards show, hosted by Rob Schneider and Hilary Duff from California's Universal City, will be broadcast Tuesday on FOX.