Surname Chattopadhyay (Chattopadhyay 
, Чаттопадхьяй 
) , throughout the world, is a common last name. The surname Chattopadhyay is habitual in India, where it is quite a rare surname, United Arab Emirates, and Australia. Not in comparison with a country's population, it is the most numerous in India, the United States, and Australia.
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| Chattopadhyay | Australia, India, United States, Bangladesh, United Arab Emirates |
| Чаттопадхьяй | Ukraine |
Chatarjee, Chatarji, Chaterjee, Chatterjea, Chatterjee, Chatterji, Chattopadhyaya, and Чаттопадхяы
| khudiram chattopadhyay Father of Ramakrishna Paramahamsa, IN (b. 1775) |
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| aghorenath chattopadhyay Indian educationalist (1851–1915) (b. 1851) |
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| nishikanta chattopadhyay Bengali scholar (b. 1852) |
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vishmadeb chattopadhyay Indian classical vocal artist and music director (b. 1909) |
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| abanibhushan chattopadhyay Bengali mathematician (b. 1891) |
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kamanio chattopadhyay Indian materials engineer, IN (b. 1950) |
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swapan chattopadhyay Indian physicist, IN (b. 1951) |
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| piya chattopadhyay Canadian broadcaster, CA (b. 1901) |
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amitava chattopadhyay Business writer, IN (b. 1956) |
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| kshitish prasad chattopadhyay (b. 1897) |
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| susil ranjan chattopadhyay IN (b. 1898) |
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| ashoke chattopadhyay (b. 1898) |
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debesh chattopadhyay Indian Film & Theatre Director, IN (b. 1960) |
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| mihir lal chattopadhyay IN (b. 1902) |
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| narayan chattopadhyay IN (b. 1908) |
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