Carlos Rosa Mayi (born September 21, 1984) is a former professional baseball pitcher.

Rosa began the 2008 season in Double-A with the Northwest Arkansas Naturals, where he led the Texas League in ERA and WHIP. He was promoted to Triple-A Omaha in May. He made his Major League Baseball debut against the Arizona Diamondbacks on June 14, 2008. He also got his first strikeout on that day.

Rosa was traded to the Arizona Diamondbacks on May 1, 2010, for minor league shortstop Rey Navarro.

On April 17, 2016, Rosa signed with the Guerreros de Oaxaca of the Mexican Baseball League. He was released on April 28, 2016.

• Career statistics from MLB, or ESPN, or Baseball Reference, or Fangraphs, or Baseball Reference (Minors)