Cognomen Semayer (Semayer 
) , all over the world, is a very rare family name. The family name Semayer is habitual in South-eastern Asia, particularly Indonesia, where it is a very rare surname. More prevalently, Semayer is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Semayer | Malaysia, Indonesia, Turkey |
| semayer vilibald Hungarian anthropologist, ethnographer, museologist, HU (b. 1868) |
|