Oh So Sharp (1982–2001) was an Irish-bred, British-trained Thoroughbred racehorse best known for winning the Fillies' Triple Crown in 1985. In a racing career which lasted from August 1984 until September 1985 she won seven of her nine races, starting favourite on each occasion, and never at odds of more than 2/1. She was one of the leading two-year-old fillies of 1984 when she as unbeaten in three races including the Fillies' Mile.