Cognomen Rihma (Rihma 
) , all over the world, is a rare family name. The cognomen Rihma is habitual in Estonia, where it is quite a rare surname, Indonesia, where it is a very rare surname, and Brazil, where it is an extremely rare surname. Also, Rihma is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Rihma | Estonia, Philippines, Brazil, India, Indonesia |
|
annika rihma Estonian orienteer, EE (b. 1984) |
|
| eve rihma (b. 1971) |
|