Around the world, Parameswaran (Parameswaran 
) is quite a rare masculine given name. The given name Parameswaran is characteristic of Sri Lanka, where it is quite a rare boy's name, Oman, where it is a rare male name, and Qatar. Measured by absolute frequency, the name is most common in Sri Lanka, India, and Malaysia. Very seldom, Parameswaran is the last name as well as the forename.
| VARIANT | COUNTRY |
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| Parameswaran | United Arab Emirates, United States, Malaysia, Sri Lanka, India |
| chowara parameswaran Indian journalist and freedom fighter (b. 1884) |
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| b. parameswaran Indian politician (1913-1966), IN (b. 1913) |
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| subramonian parameswaran mathematician (b. 1920) |
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| narayanan parameswaran researcher ORCID: 0000-0002-8894-5564 (b. 1970) |
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| vasu parameswaran Ph.D. University of Maryland College Park 2004 |
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| pattiyil parameswaran researcher |
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| narayanan parameswaran researcher (ORCID 0000-0002-8297-5789) |
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| ramanathan parameswaran researcher ORCID ID = 0000-0002-3941-6199 |
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