In the entire world, Ritwik (Ritwik 
, Rithwik , ঋত্বিক) is quite a common boy's given name. The first name Ritwik is habitual in India, where it is a rare masculine name, and the United States, where it is a very rare boy's name. Very seldom, Ritwik is the last name as well as the forename.
| VARIANT | COUNTRY |
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| Ritwik | Bangladesh, Nepal, United States, India, Malaysia |
| Rithwik | United States, India |
| ritwik sanyal Indian singer, IN (b. 1953) |
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| ritwik bhattacharya Indian squash player, IN (b. 1979) |
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| ritwik bhowmik Indian actor |
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| ritwik maity researcher (ORCID 0000-0003-4058-2888) |
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| ritwik banerjee researcher (ORCID 0000-0003-2237-6474) |
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| ritwik mitra Ph.D. Rutgers University, New Brunswick 2015 |
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| ritwik datta researcher (ORCID 0000-0001-5342-2731) |
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| ritwik giri Ph.D. University of California, San Diego 2016 |
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| ritwik kumar Ph.D. University of Florida 2009 |
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| ritwik kejriwal researcher (ORCID 0000-0001-8771-429X) |
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| ritwik patra researcher |
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| ritwik dahake researcher |
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| ritwik mukherjee Ph.D. State University of New York at Stony Brook 2011 |
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| ritwik sinha Ph.D. Case Western Reserve University 2007 |
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| ritwik bhattacharya Ph.D. University of Utah 2006 |
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Sen, Nandi, Mandal, Mondal, Mishra, Sarkar, Sharma, Sondhi, Biswas, Pandey, Thakur, Halder, Samanta, Agarwal, Goswami, Sengupta, Banerjee, Mukherjee, Chowdhury, Srivastava, Chatterjee, Chakraborty, Ghosh, Gupta, Dutta, Datta, Pal, Raj, Ray, Rai, Roy, Dey, Das, Saha, Basu, Bera, Bhattacharya, Bose, Giri, Jana, Jain, Maity, Maiti, Mitra, Singh, Sinha, Kumar, Patra, Paul, and Bhattacharyya