Cognomen Asno (Asto 
, Asnu 
, Asno 
) , in all the world, is a common surname. The cognomen Asno is characteristic of Peru, where it is quite a common surname, Philippines, where it is a rare surname, and Indonesia. Likewise, Asno is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Asto | India, Indonesia, Philippines, Ethiopia, Peru |
| Asnu | India, Tanzania, Malaysia, Indonesia, Philippines |
| Asno | India, United States, Malaysia, Indonesia, Philippines |
| Snon | Australia, India, Morocco, Malaysia, Indonesia |