It's the seventh time Roethlisberger has won this award in his eight-year career. The last time was Week 17 of last season.
On Sunday, he completed 24 of 34 passes (70.6 percent) and posted a 116.2 passer rating. He tied a franchise record with five touchdown passes. He previously accomplished this feat in November 2007 against the Ravens.
He also joined Terry Bradshaw as the only quarterbacks in franchise history to reach 150 career touchdowns.