José Omar Acevedo (born December 18, 1977) is a retired right-handed Major League Baseball pitcher who last played for the Baltimore Orioles organization. Acevedo played previously with the Cincinnati Reds from – and the Colorado Rockies from to 2006. In his five-year career, Acevedo has a career record of 18–25 with an ERA of 5.74. He is a cousin of Hall of Fame pitcher Juan Marichal. He has no relation to pitcher Juan Acevedo, as he is from Mexico. Acevedo was released by the Baltimore Orioles on March 12, 2007.