Mark Ellis, American baseball player
Mark William Ellis (born June 6, 1977) is an American former professional baseball second baseman. He played the majority of his Major League Baseball (MLB) career for the Oakland Athletics, and also appeared for the Colorado Rockies, Los Angeles Dodgers and St. Louis Cardinals. Ellis posted a career .991 fielding percentage, the fifth-best all-time for a second baseman in MLB history at the time of his retirement.