Last name Athanasion (Athanasion 
) , throughout the world, is a very rare cognomen. The last name Athanasion is habitual in Bulgaria, where it is a rare surname, and the United States, where it is an extremely rare surname. Very seldom, Athanasion is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Athanasion | Bulgaria, United States |