Cognomen Dorairaj (Dorairaj 
) , across the world, is quite a rare last name. The cognomen Dorairaj is characteristic of Malaysia, where it is quite a rare surname, Singapore, and Bahrain. Not in comparison with a country's population, it is commonest in Malaysia, India, and the United States. Also, Dorairaj is the forename as well as the last name.
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| Dorairaj | United Arab Emirates, United States, Singapore, Malaysia, India |
| lawrence pius dorairaj Indian priest, IN (b. 1954) |
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| s. m. dorairaj former Member of the Legislative Assembly (India), IN |
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| jemima j dorairaj researcher |
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| jayachandran dorairaj researcher |
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| syril dorairaj researcher |
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| kirithika dorairaj assistant professor of clinical medicine |
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