Cognomen Dhruba (Dhruba 
) , worldwide, is quite a rare last name. The last name Dhruba is habitual in Qatar, where it is a rare surname, Nepal, and Bangladesh. In absolute terms, it most frequently occurs in Southern Asia, particularly Bangladesh, Nepal, and India. Much more frequently, Dhruba is the forename as well as the last name.
Sen, Mondal, Sardar, Sarkar, Saikia, Sharma, Barman, Behera, Biswas, Kalita, Chhetri, Baishya, Pradhan, Debnath, Goswami, Majumdar, Shrestha, Adhikari, Banerjee, Talukdar, Mukherjee, Chatterjee, Mahato, Mandal, Nayak, Thapa, Pal, Ray, Rai, Roy, Dey, Das, Saha, Sahu, Bora, Paul, Chakraborty, Deka, Sarma, Sahoo, Singh, Borah, Rabha, Dutta, Gupta, Gogoi, Ghosh, Jyoti, Nath, and Bhattacharya