Cognomen Raychaudhuri (Raychaudhuri 
) , across the world, is quite a rare family name. The family name Raychaudhuri is habitual in India, where it is a rare surname, Australia, where it is a very rare surname, and Singapore. Not in comparison with a country's population, the name is most common in India, the United States, and the United Kingdom.
| VARIANT | COUNTRY |
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| Raychaudhuri | United Kingdom, Australia, United States, India, Canada |
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amitava raychaudhuri Indian theoretical particle physicist, IN (b. 1952) |
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dipankar raychaudhuri Indian electrical engineer, IN (b. 1955) |
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| syam prasaa raychaudhuri botanist (b. 1915) |
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soumya raychaudhuri researcher (b. 1975) |
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| arup kumar raychaudhuri Indian physicist, IN (b. 1952) |
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| pratap raychaudhuri Indian physicist, IN (b. 1971) |
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| sujata raychaudhuri researcher (ORCID 0000-0001-8490-2949) |
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| nitika raychaudhuri researcher |
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| sumana raychaudhuri researcher |
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| kumarkrishna raychaudhuri researcher ORCID ID = 0000-0001-5198-8651 |
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| anindya raychaudhuri researcher and lecturer in English |
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| subhadip raychaudhuri researcher |
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| aparna raychaudhuri Ph.D. University of Florida 1992 |
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| sreejata raychaudhuri researcher |
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| saibal raychaudhuri botanist |
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