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Family name Swapan (Swapan , স্বপন ) , in all the world, is quite a common cognomen. The surname Swapan is habitual in Bangladesh, where it is quite a rare surname, Bahrain, and Oman. Not in comparison with a country's population, it is commonest in Bangladesh, India, and Saudi Arabia. Predominantly, Swapan is the forename as well as the last name.
De, Ghosh, Mandal, Maiiti, Mahato, Mondal, Sardar, Sarkar, Barman, Biswas, Naskar, Halder, Haldar, Samanta, Debnath, Majumdar, Adhikari, Banerjee, Karmakar, Pramanik, Mukherjee, Chatterjee, Dutta, Patra, Kundu, Bauri, Mal, Sen, Bag, Pal, Ray, Roy, Dey, Das, Maji, Saha, Chakraborty, Bera, Giri, Jana, Manna, Malik, Maity, Maiti, Majhi, Murmu, Basak, Bagdi, Paul, and Bhattacharya