Last name Куно (Kuno 
, Cuno 
, Kouno 
) , in the entire world, is quite a common cognomen. The family name Куно is habitual in Peru, where it is quite a common surname, Bolivia, where it is quite a rare surname, and Papua New Guinea. Not in comparison with a country's population, this name is the most popular in Peru, Bolivia, and Germany. Likewise, Куно is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Kuno | India, Bolivia, Japan, Germany, Peru |
| Cuno | India, Bolivia, United States, Germany, Peru |
| Kouno | Brazil, Thailand, India, United States, Japan |
| Куно | Kazakhstan, Russia, Bulgaria, Ukraine |