Cognomen Awatsu (Awatsu 
) , worldwide, is a very rare family name. The surname Awatsu is characteristic of Japan, where it is a very rare surname, Nigeria, where it is an extremely rare surname, and the United States.
| VARIANT | COUNTRY |
|---|---|
| Awatsu | Nigeria, Japan, United States |
| kiyosuke awatsu (b. 1871) |
|