Surname Sumun (Sumun 
) , in the entire world, is a rare family name. The cognomen Sumun is habitual in Mauritius, where it is quite a rare surname, Oman, where it is a rare surname, and Bahrain. Not in comparison with a country's population, it most frequently occurs in Bangladesh, Tanzania, and Mauritius. More frequently, Sumun is the forename as well as the last name.