Cognomen Nallan (Nallan 
) , all around the world, is quite a rare surname. The last name Nallan is habitual in Mauritius, where it is quite a rare surname, Malaysia, and Ireland, where it is a rare surname. In absolute terms, it is the most numerous in India, Malaysia, and Mauritius. Also, Nallan is the forename as well as the last name.
| VARIANT | COUNTRY |
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| Nallan | Malaysia, Mauritius, United States, India, Philippines |
| nallan chakravartula raghunathacharya swamy scholar (b. 1926) |
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| nallan chakravartula krishnamacharyulu Violinist, Teacher, Scholar and exponent of Hari Katha, IN (b. 1926) |
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| laxman nallan researcher |
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| nallan c s k chaitanya researcher (ORCID 0000-0003-2100-3131) |
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| nallan chakravartulu ramanuja charya |
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