Bayakoa (October 10, 1984 - June 14, 1997) was a Thoroughbred Champion racehorse bred in Argentina. A descendant of the very important sire Nearco through both her sire and dam, after racing successfully in Argentina, Bayakoa was sold to Americans Janis and Frank Whitham.Racing in the United States, she was trained by U.S. Hall of Famer Ron McAnally. She won the 1989 and 1990 Eclipse Award for Outstanding Older Female Horse, winning the Breeders' Cup Distaff in both of those years.