Surname Гаэтан (Gaëtan 
, Gaëtane 
, Гаэтан 
) , in all the world, is a rare family name. The cognomen Гаэтан is characteristic of Belgium, where it is a rare surname, Cameroon, and France. Predominantly, Гаэтан is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Gaëtan | Belgium, Cameroon, Democratic Republic of the Congo, Madagascar, France |
| Gaëtane | Belgium, Canada, United States, Democratic Republic of the Congo, France |
| Гаэтан | Russia |