Family name รัตณะ (รัตณะ 
) , in all the world, is an extremely rare cognomen. The cognomen รัตณะ is characteristic of South-eastern Asia, particularly Thailand, where it is an extremely rare surname. Much more prevalently, รัตณะ is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| รัตณะ | Thailand |