Family name Констан (Constant 
, Konstan 
, Констан 
) , in all the world, is a common surname. The surname Констан is characteristic of Guadeloupe, where it is quite a common surname, Antigua and Barbuda, and Seychelles (explore the name in all countries). Measured by absolute frequency, this name is the most popular in France, the United States, and Ivory Coast. Likewise, Констан is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Constant | United States, Cameroon, Ivory Coast, Democratic Republic of the Congo, France |
| Konstan | Greece, South Africa, Indonesia, Canada, United States |
| Констан | Kazakhstan, Russia |
| Troyon | Brazil, Spain, Canada, United States, France |
Constancio, Constans, Costanzo, and Констант