كتب : Omar AbdelAziz
The Blues finish top with 86 points, one ahead of United who thrashed Stoke 4-0.
Didier Drogba netted a hat-trick to leapfrog Wayne Rooney on top of the scoring charts with 29 goals.
Nicolas Anelka grabbed a brace, while Frank Lampard, Salomon Kalou and Ashley Cole completed the drubbing.
Wigan played for almost an hour with ten men after Gary Caldwell had been sent off for a professional foul on Lampard.
At Old Trafford, Darren Fletcher, Ryan Giggs, Danny Higginbotham (own goal) and Park Ji-Sung blasted United to victory, but it meant at the end.
Elsewhere, relegated Burnley thrashed fourth-placed Tottenham 4-2, while Arsenal made sure they finish third with a 4-0 home win over Fulham.
Chelsea 8-0 Wigan