He is a former Major League Baseball third baseman who played for the Cincinnati Reds (1988–89) and Baltimore Orioles (1990).

Brown was selected by the Cincinnati Reds in the 12th round of the 1985 Major League Baseball Draft.

He reached the major leagues in 1988 and appeared in 35 games over two seasons with the Reds and one with the Baltimore Orioles, who had selected him in the Rule 5 Draft in winter 1989.

[1] Brown served as the manager of the Hiroshima Toyo Carp from 2006 to 2009, and the Tohoku Rakuten Golden Eagles in 2010.

[7] Marty Brown is currently the Washington Nationals' director of Pacific Rim scouting.