Juan Guillermo Bonilla (born February 12, 1956) is a Puerto Rican former professional baseball player who played in the Major Leagues from 1981-1987 as a second baseman. He played for the San Diego Padres, Baltimore Orioles and New York Yankees. His uniform numbers were #3 (San Diego Padres 1981-1983), #55 (New York Yankees), #3 (Baltimore Orioles 1986), and #47 (New York Yankees, first half of 1987 season), #57 (second half of 1987 season). Bonilla also played baseball at Florida State University.