Surname Sellathurai (Sellathurai 
) , around the world, is quite a rare family name. The family name Sellathurai is characteristic of Sri Lanka, where it is quite a rare surname, Malaysia, and Qatar, where it is a rare surname. Not in comparison with a country's population, it is commonest in Sri Lanka, Malaysia, and Canada. Likewise, Sellathurai is the forename as well as the last name.
| VARIANT | COUNTRY |
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| Sellathurai | Canada, Singapore, India, Sri Lanka, Malaysia |
| mathini sellathurai researcher (ORCID 0000-0002-8738-8583) |
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| vashanth sellathurai Indian singer, IN (b. 1984) |
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| prashanth sellathurai Australian artistic gymnast, AU (b. 1986) |
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