Family name Mousami (Mousami 
) , all over the world, is a very rare cognomen. The family name Mousami is habitual in Southern Asia, particularly India, where it is an extremely rare surname. Much more frequently, Mousami is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Mousami | Brazil, Canada, United Kingdom, United States, India |
De, Mandal, Mahato, Mondal, Mishra, Sardar, Sarkar, Sharma, Singha, Barman, Biswas, Khatun, Kumari, Parvin, Prasad, Samanta, Pradhan, Debnath, Majumdar, Adhikari, Banerjee, Debbarma, Ghosh, Gupta, Dutta, Dolai, Sen, Bai, Pal, Ray, Roy, Dey, Das, Nag, Saha, Shah, Mukherjee, Shaw, Paul, Devi, Nath, Meena, Singh, Basak, Bauri, Patra, Patel, Panda, Bibi, and Chakraborty