Worldwide, Ruwantha (Ruwantha 
) is quite a rare masculine first name. The first name Ruwantha is characteristic of Southern Asia, particularly Sri Lanka, where it is quite a rare male name. Likewise, Ruwantha is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Ruwantha | United States, Australia, Sri Lanka, United Kingdom |
| ruwantha ekanayake Sri Lankan cricketer, LK (b. 1993) |
|