James Eugene Wohlford (born February 28, 1951) is a former American professional baseball player.
In his 15-year Major League Baseball (MLB) career, he played for the Kansas City Royals (1972–76), Milwaukee Brewers (1977–79), San Francisco Giants (1980–82), and Montreal Expos (1983–86), primarily as an outfielder.
During his Major League career, he became notable for saying the line, "Ninety percent of this game is half-mental."