Michael Anthony Gallego (born October 31, 1960) is an American former professional baseball player and current coach. He played in Major League Baseball (MLB) as an infielder from 1985 to 1997, most notably as a member of the Oakland Athletics team that won three consecutive American League pennants and a World Series championship in 1989. He also played for the New York Yankees and the St. Louis Cardinals. After his playing career, Gallego served as a major league coach.
Gallego was born in Whittier, California of Mexican descent and attended St. Paul High School in Santa Fe Springs, California. He was the Athletics starting second baseman during their three-year run of American League Championships from 1988 through 1990, which included a World Series sweep in 1989 against their Bay Area rivals, the San Francisco Giants. Throughout his career, he was known more for his glove than his bat. In 1990, he led the AL in sacrifice hits with 17. He had 28 hits without an extra-base hit in 1995, still the post-1912 non-pitcher record. Gallego's 12 home runs in 1991 set a career high.