Surname Окман (Okman 
, Oakman 
, Окман 
) , all around the world, is quite a rare last name. The cognomen Окман is characteristic of Turkey, where it is quite a rare surname, Australia, where it is a rare surname, and the United Kingdom. In absolute terms, it most frequently occurs in Turkey, the United States, and the United Kingdom. Very seldom, Окман is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Okman | Myanmar, Thailand, United States, Indonesia, Turkey |
| Oakman | Australia, Canada, United Kingdom, United States, Turkey |
| Окман | Russia, Ukraine |