Cognomen 艾森 (Asen 
, 艾森 
, Aissen 
) , globally, is a common family name. The cognomen 艾森 is characteristic of North Macedonia, where it is quite a rare surname, Fiji, and Ethiopia. Measured by absolute frequency, it is the most numerous in Ethiopia, Nigeria, and Indonesia. More prevalently, 艾森 is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Asen | Nigeria, Indonesia, Bulgaria, Ethiopia, India |
| 艾森 | China |
| Aissen | Germany, Canada, United States, Albania, India |
| Eyssen | Germany, South Africa, Brazil, United States, Zambia |