Family name Somathilake (Somathilake 
) , in the entire world, is a rare surname. The last name Somathilake is characteristic of Sri Lanka, where it is quite a rare surname, and the United States, where it is an extremely rare surname.
| VARIANT | COUNTRY |
|---|---|
| Somathilake | United States, Sri Lanka |
| lekam wattage somathilake Ph.D. University of Ruhuna 2014 |
|