Martinez, 35, tallied 14 multihit games and was third in the AL in on-base percentage (.442) thanks to 19 walks.
Martinez -- whose .332 season average was second only to the Astros' Jose Altuve in the Majors entering Wednesday -- is the first Detroit player to win the award in 2014. The last Tiger to win it was two-time reigning AL MVP Miguel Cabrera, who earned the distinction last August.
Houston's Chris Carter, Kansas City's Alex Gordon, Chicago's Jose Abreu and Minnesota's Trevor Plouffe also received votes.
Stephen Pianovich is an associate reporter for MLB.com. This story was not subject to the approval of Major League Baseball or its clubs.