Family name Somadasa (Somadasa 
) , in all the world, is a rare cognomen. The last name Somadasa is characteristic of Sri Lanka, where it is quite a rare surname, the United Kingdom, where it is an extremely rare surname, and Canada. Much less frequently, Somadasa is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Somadasa | Canada, India, United States, Sri Lanka, United Kingdom |
| hettiwattege somadasa Ph.D. Swansea University 1967 |
|