Family name Constan Estefany (Constan Estefany 
) , all over the world, is an extremely rare last name. The last name Constan Estefany is habitual in Latin America and the Caribbean, particularly Chile, where it is an extremely rare surname. More prevalently, Constan Estefany is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Constan Estefany | Chile |