Gary Joseph Gaetti (; born August 19, 1958 in Centralia, Illinois), nicknamed "G-Man" ("Rat" or "Zorn" during his earlier days), is an American former third baseman in Major League Baseball for the Minnesota Twins (1981-90), California Angels (1991-93), Kansas City Royals (1993-95), St. Louis Cardinals (1996-98), Chicago Cubs (1998-99) and Boston Red Sox (2000). Gaetti thereby achieved notoriety as a 20-year" player.