Cognomen Καλτσάς (Καλτσάς 
) , all around the world, is a very rare family name. The last name Καλτσάς is habitual in Southern Europe, particularly Greece, where it is a rare surname.
| VARIANT | COUNTRY |
|---|---|
| Καλτσάς | Greece |
|
νίκος καλτσάς Greek association football player, GR (b. 1990) |
|
| νικόλαος καλτσάς Greek archaeologist and art historian, GR |
|