Alsab was an American Hall of Fame Thoroughbred racehorse.
Alsab was voted the 1941 U.S. Champion Two-Year-Old Colt and in his three-year-old season in which jockey Basil James rode him to a win in the Preakness Stakes and second-place to Shut Out in both the Kentucky Derby and Belmont Stakes, he won 1942 U.S. Champion Three-Year-Old Colt honors.
In 1942, Also defeated the 1941 U.S. Triple Crown Champion Whirlaway in a match race at Narragansett Park in Pawtucket, Rhode Island.
In the Blood-Horse magazine List of the Top 100 U.S. Racehorses of the 20th Century, Alsab was voted #65. In 1976, he was inducted in the United States' National Museum of Racing and Hall of Fame.