Cognomen Sumanta (Sumanta 
) , across the world, is quite a rare family name. The family name Sumanta is habitual in Indonesia, where it is a rare surname, India, where it is a very rare surname, and Malaysia. In absolute terms, it is commonest in Indonesia, India, and China. Predominantly, Sumanta is the forename as well as the last name.
De, Panda, Dutta, Garai, Ghosh, Nayak, Mandal, Mondal, Mishra, Sarkar, Barman, Behera, Biswas, Biswal, Parida, Mallick, Mohanty, Pradhan, Banerjee, Karmakar, Mukherjee, Chatterjee, Patra, Kumar, Kundu, Bauri, Bag, Pal, Ray, Roy, Dey, Das, Maji, Saha, Sahu, Bhoi, Chakraborty, Paul, Devi, Jena, Naik, Malik, Majhi, Sahoo, Singh, Swain, Barik, Bagdi, Raut, and Bhattacharya