Horometer (1931–1935) was a Canadian Hall of Fame Thoroughbred racehorse. Bred and raced by Col. Sam McLaughlin's Parkwood Stable, he was out of the mare Star Pal and sired by Hourless, the 1917 American Co-Champion 3-Yr-Old Male Horse and winner of the Belmont Stakes.Trained by Canadian Hall of Fame trainer Harry Giddings, Jr., Horometer was ridden by future Canadian Hall of Fame jockey Frankie Mann throughout his career.