Cognomen Wadaki (Wadaki 
) , in all the world, is a rare family name. The cognomen Wadaki is characteristic of Japan, where it is a rare surname, Malaysia, and India, where it is an extremely rare surname.
| VARIANT | COUNTRY |
|---|---|
| Wadaki | Japan, India, Nigeria, Malaysia |
| matsutarÅ wadaki Japanese accounting academic (b. 1918) |
|