Prince Rose (1928–1944) was a British-bred, Belgian-trained Thoroughbred racehorse, often referred to as the best horse in Belgian racing.

His grandsire was Prince Palatine, a two-time British Horse of the Year and his damsire was Gay Crusader, winner of the 1917 English Triple Crown.

The Earl of Durham died in 1929 and his estate sold Prince Rose to Belgian dentist Henri Coppez (1869–1946) who brought him to Belgium.

[2] Retired to stud duty after winning sixteen races in twenty starts, Prince Rose sired seven offspring in Belgium before being sent to the Haras de Cheffreville breeding Farm in France in 1938 where he would produce another thirty-five.

However, most important for horse racing in the United States, in 1939 Prince Rose had been mated with the mare Cosquilla who, because of the onset of World War II, was shipped to safety in Ireland.