Surname Constán (Constán 
) , across the world, is an extremely rare cognomen. The cognomen Constán is habitual in Spain, where it is a very rare surname, and Argentina, where it is an extremely rare surname.
| VARIANT | COUNTRY |
|---|---|
| Constán | Argentina, Spain |
| sergio constán valverde Spanish philologist and researcher, ES (b. 1974) |
|