Surname Pinaki (Pinaki 
) , in all the world, is a rare family name. The cognomen Pinaki is characteristic of Singapore, where it is a very rare surname, India, and Malaysia, where it is an extremely rare surname. In absolute terms, it is the most numerous in India, Singapore, and the United States. Much more frequently, Pinaki is the forename as well as the last name.
De, Mandal, Mondal, Mishra, Sarkar, Barman, Biswas, Halder, Mohanty, Debnath, Ganguly, Majumder, Majumdar, Sengupta, Banerjee, Karmakar, Dasgupta, Mukherjee, Chowdhury, Chatterjee, Chakraborty, Bhattacharya, Nayak, Nandi, Ghosh, Gupta, Sen, Kar, Pal, Ray, Roy, Dey, Das, Saha, Basu, Bose, Bhattacharyya, Paul, Dhar, Guha, Jana, Nath, Mitra, Kundu, Patra, Panda, Datta, Dutta, Devi, and Bhattacharjee