Cognomen Rupkumar (Rupkumar 
) , in the entire world, is a very rare family name. The last name Rupkumar is habitual in Southern Asia, particularly India, where it is an extremely rare surname. Predominantly, Rupkumar is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Rupkumar | India, United States, Bangladesh, United Kingdom |
De, Ghosh, Hazra, Mandal, Mahato, Mondal, Santra, Sardar, Sarkar, Samant, Singha, Barman, Biswas, Naskar, Halder, Haldar, Santara, Samanta, Haladar, Adhikari, Karmakar, Pramanik, Gayen, Dhara, Dutta, Dalui, Mal, Sau, Bag, Bor, Pal, Ray, Roy, Das, Saha, Sing, Mukherjee, Adak, Kole, Khan, Paul, Jana, Manna, Malik, Maity, Maiti, Singh, Patra, Bera, and Chakraborty