Family name Yemas (Gemma 
, Yemas 
) , around the globe, is a common cognomen. The surname Yemas is characteristic of Spain, where it is quite a common surname, Reunion, and Italy, where it is quite a rare surname. Not in comparison with a country's population, this name is the most popular in Spain, Mexico, and Italy. More prevalently, Yemas is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Gemma | Australia, Philippines, Spain, Italy, United Kingdom |
| Yemas | United States, India, Spain |