Oscar Carlos Acosta (March 21, 1957 – April 19, 2006) was an American professional baseball player and pitching coach. After playing five seasons in the minor leagues, he became a minor league coach with several organizations. He had first joined the New York Yankees organization in 1996, spending three seasons as the pitching coach at Triple-A Columbus (1996–98). He spent three seasons as a major league pitching coach with the Chicago Cubs (2000-01) and the Texas Rangers (2002).