Cognomen Кобаясі (Kobayasi 
, Кобаясі 
) , in the world, is a rare family name. The last name Кобаясі is characteristic of Japan, where it is a very rare surname, Brazil, and Argentina. Also, Кобаясі is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Kobayasi | Brazil, Argentina, United States, Japan, Hungary |
| Кобаясі | Ukraine |