Stamina (1905–1930) was an American Thoroughbred racehorse that was the historical top 2-year-old and 3-year-old filly in the United States in 1907 and 1908, respectively.
Through the 1907 racing season, she was trained by future Hall of Fame inductee, John W. Rogers.
Stamina was foaled in 1905 and was sired by the 1901 champion 2-year-old colt, Nasturtium, out of the 1901 co-champion 2-year-old mare, Endurance by Right.
Margerique was sired by the imported British stallion Order out of the Algerine-bred mare Margerine.
Endurance by Right was sired by the 1886 Belmont and Travers Stakes winner Inspector B. out of the mare Early Morn.