Andrew Earl Hassler (October 18, 1951 – December 25, 2019) was an American Major League Baseball pitcher. He played for the California Angels (1971, 1973–1976 and 1980–1983), Kansas City Royals (1976–1978), Boston Red Sox (1978–1979), New York Mets (1979), Pittsburgh Pirates (1980) and St. Louis Cardinals (1984–1985).
