Constance II

Constance II may refer to:


 * Anna of Hohenstaufen (1230–1307), Empress Consort of Nicaea (ca. 1241–1254), sometimes referred to as Constance II of Hohenstaufen
 * Constance of Sicily, Queen of Aragon, who disputedly ruled the Kingdom of Sicily as Constance II
 * USS Constance II (SP-633), later USS YP-633, a United States Navy patrol boat in commission from 1917 to 1922