As coach Richard Allen Bosman (born February 17, 1944) is an American former professional baseball pitcher.

He played in Major League Baseball (MLB) for the Washington Senators / Texas Rangers (1966–73), Cleveland Indians (1973–75), and Oakland Athletics (1975–76).

He is the only pitcher in Major League history to miss a perfect game due to his own fielding error.

He missed a rare perfect game due only to his own throwing error in the fourth inning, which gave the A's their lone baserunner in a 4-0 Indians victory.

Known for teaching pitchers how to control the running game, Bosman had a hand in developing James Shields, Wade Davis, Jake McGee, Jeremy Hellickson and Alex Cobb.