Cognomen Oetam (Oetam 
) , in the world, is a very rare surname. The cognomen Oetam is habitual in Saudi Arabia, where it is a very rare surname, Philippines, where it is an extremely rare surname, and Mexico. Much less frequently, Oetam is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Oetam | Mexico, Saudi Arabia, Philippines |