Family name コトノ (Kotono 
, コトノ ) , worldwide, is quite a rare last name. The surname コトノ is characteristic of Japan, where it is quite a rare surname, Brazil, where it is a very rare surname, and Nigeria, where it is an extremely rare surname. Much less frequently, コトノ is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Kotono | Japan, China, Nigeria, United States, Brazil |
| コトノ | Japan |