Cognomen Sibam (Sibam 
) , globally, is a rare last name. The surname Sibam is characteristic of South Africa, where it is a rare surname, Malaysia, and India, where it is an extremely rare surname. More prevalently, Sibam is the forename as well as the last name.
De, Singh, Kumar, Patra, Panda, Ghosh, Lohar, Mandal, Mondal, Mishra, Santra, Sarkar, Biswas, Bhagat, Thakur, Mallick, Debnath, Banerjee, Bhowmick, Karmakar, Swarnakar, Chowdhury, Misra, Chakraborty, Maity, Mandi, Sur, Pan, Pal, Rai, Roy, Dey, Das, Gon, Mura, Sain, Saha, Sahu, Sada, Bera, Paul, Rana, Dube, Giri, Laha, Jana, Nath, Manna, and Bhattacharjee