The U.S. Open champion has been voted Player of the Year by the Golf Writers Association of America.
McDowell received 87 votes to beat Jim Furyk (61) and Martin Kaymer (51). The Northern Irishman won three times this year and captured the decisive match in the Ryder Cup for Europe against the United States.
McDowell also won the Golf Writers Trophy from the British-based Association of Golf Writers. He shared European Tour Player of the Year with Kaymer.
Yani Tseng won female Player of the Year from the GWAA, topping Cristie Kerr and Ai Miyazato. Bernhard Langer was the overwhelming choice as the senior Player of the Year.
They will be honored April 6 in Augusta, Ga., the week of the Masters Tournament.