Surname Gelcis (Gelcis 
) , worldwide, is a very rare cognomen. The family name Gelcis is habitual in Latin America and the Caribbean, particularly Argentina, where it is a very rare surname, Honduras, and Venezuela, where it is an extremely rare surname. More prevalently, Gelcis is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Gelcis | Democratic Republic of the Congo, Honduras, Argentina, Brazil, Venezuela |