Griffin, whose thrill-a-minute combination of running and passing skills led Washington to its first NFC East title in 13 years, pulled away from Andrew Luck of the Colts and Russell Wilson of the Seahawks in a lopsided vote announced Saturday.
RG3 earned 29 votes from a nationwide panel of 50 media members who regularly cover the league. Luck was next with 11 and Wilson got 10.
All three led their teams to the playoffs.
Griffin, who severely injured his right knee in a wild-card round loss to the Seahawks, set the NFL record for best passer rating by a rookie QB.
He accepted his award at the "2nd Annual NFL Honors" awards show on CBS saluting the NFL's best players, performances and plays from the 2012 season.
Online: http://pro32.ap.org/poll and http://twitter.com/AP_NFL