All around the world, Thalatha (Thalatha 
) is a rare feminine given name. The first name Thalatha is habitual in Southern Asia, particularly Sri Lanka, where it is a rare girly name. Much less frequently, Thalatha is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Thalatha | Malaysia, United Kingdom, India, Sri Lanka, Thailand |
| thalatha gunasekara Sri Lankan actress (1937-2003) (b. 1937) |
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| thalatha wijerathna Sri Lankan novelist and educator |
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Mahadi, Perera, Peiris, Senapathi, Kospelawatta, Ranasinghe, Kulathilake, Wickramaradne, and Wickramasingha