Cognomen Oikhman (Oikhman 
, Ойхман 
) , around the world, is a very rare last name. The surname Oikhman is characteristic of Israel, where it is a very rare surname, Ukraine, and Russia.
| VARIANT | COUNTRY |
|---|---|
| Oikhman | Canada, Israel, United States |
| Ойхман | Russia, Ukraine |