Surname Ponraj (Ponraj 
) , globally, is quite a rare last name. The cognomen Ponraj is habitual in Western Asia, particularly Oman, where it is quite a rare surname, United Arab Emirates, and Qatar, where it is a rare surname. Measured by absolute frequency, it most frequently occurs in India, United Arab Emirates, and Oman. Likewise, Ponraj is the forename as well as the last name.
| VARIANT | COUNTRY |
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| Ponraj | Saudi Arabia, United Arab Emirates, Malaysia, India, Oman |
| c. j. ponraj Indian administrative service officer, IN |
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| sithuraj ponraj Tamil writer and poet |
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| ratna rachel ponraj researcher |
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| udhaya ponraj researcher |
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| joice sophia ponraj researcher |
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| thondhi ponraj researcher |
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