Borgia (4 April 1994 – 29 March 2012) was a German-bred Thoroughbred racemare that was trained in Germany and France.

She won the Deutsches Derby, Grosser Preis von Baden, and Hong Kong Vase.

Borgia was by Acatenango and her dam, Britannia, was by Tarim (GB), making her a half-sister to Boreal, who also won the Deutsches (German) Derby.

She finished third in the Prix de l'Arc de Triomphe and second to Chief Bearheart in the Breeders' Cup Turf, a Group One (G1) weight for age race held in North America.

Her four-year-old daughter, Bahama Bay by Dansili, finished fourth in the listed Prix de Royaumont.