Last name Somasiri (Somasiri 
) , globally, is quite a rare surname. The surname Somasiri is habitual in Sri Lanka, where it is quite a common surname, Kuwait, where it is a rare surname, and Australia, where it is a very rare surname. In absolute terms, this name is the most popular in Sri Lanka, Kuwait, and the United States. Very seldom, Somasiri is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Somasiri | Australia, Kuwait, United States, Sri Lanka, Saudi Arabia |
| somasiri kumaradas perera (b. 1921) |
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| somasiri dehipitiya Sri Lankan actor, LK (b. 1933) |
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| somasiri medagedara Sri Lankan singer |
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| somasiri jayawardena |
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