Cognomen اثان (Ethan 
, Athan 
, اثان 
) , throughout the world, is a common family name. The surname اثان is habitual in Greece, where it is a common surname, Mauritius, where it is quite a rare surname, and Singapore. In absolute terms, the name is most common in Greece, Indonesia, and Nigeria. More frequently, اثان is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Ethan | Taiwan, Australia, China, United States, Greece |
| Athan | United Kingdom, Australia, China, United States, Greece |
| اثان | Iraq |