Last name Vithanachchi (Vithanachchi 
) , in all the world, is a rare cognomen. The surname Vithanachchi is characteristic of Sri Lanka, where it is quite a rare surname, Australia, where it is a very rare surname, and the United States, where it is an extremely rare surname.
| VARIANT | COUNTRY |
|---|---|
| Vithanachchi | United States, Australia, Sri Lanka |
| dinusha t vithanachchi researcher |
|