Constance is the English and French form of the Latin Constantia and means "constancy" or "steadfastness". It was borne by a daughter of Emperor Constantine the Great and by several medieval queens, and the Normans brought it to England. Constance was a top 100 name in the 1940s and 1950s; it ranked number 1099 in 2000 and has stayed outside the top 1000 since, holding number 1501 in 2025.