Family name ساردينا (Sardina 
, Sardinha 
, ساردينا) , in the world, is a common cognomen. The cognomen ساردينا is habitual in Guernsey, where it is quite a common surname, Portugal, and Angola. Not in comparison with a country's population, it most frequently occurs in Brazil, Angola, and Portugal. Much less frequently, ساردينا is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Sardina | Portugal, Egypt, Italy, Brazil, United States |
| Sardinha | Portugal, Italy, Brazil, United States, Angola |