Martin Glenn Barrett (born June 23, 1958) is an American former Major League Baseball second baseman who played for the Boston Red Sox (1982–1990) and San Diego Padres (1991).

[citation needed] An excellent second baseman with an above-average arm, Barrett was known as a smart player and a great contact hitter, striking out only 209 times in 3378 at-bats, and collecting a significant number of big hits by driving tough pitches to the opposite field.

But his most productive year was 1986, when he posted career-highs in RBI (60), hits (179), doubles (39), triples (4), stolen bases (15) and games played (158).

[citation needed] During the final game of the 1990 ALCS, Red Sox pitcher, Roger Clemens, was ejected in the bottom of the second inning.

In his National League debut he was called upon as a pinch hitter to face the San Francisco Giants' Dave Righetti, with two outs in the ninth inning.