Douglas Leonard Holmquist (October 4, 1941 – February 27, 1988) was an American minor league baseball player and manager, as well as Major League Baseball coach for the New York Yankees. He played professionally as a catcher from 1962 to 1965, and later managed and/or coached at the professional level from 1978 to 1985. He led his teams to win league championships in 1980 and 1982.