Cognomen Denawaka (Denawaka 
) , in the entire world, is quite a rare family name. The family name Denawaka is habitual in Sri Lanka, where it is quite a rare surname, and the United States, where it is an extremely rare surname.
| VARIANT | COUNTRY |
|---|---|
| Denawaka | United States, Sri Lanka |
| denawaka hamine Sri Lankan actress, LK (b. 1906) |
|