Worldwide, Piku (Piku 
) is quite a common unisex first name. The first name Piku is habitual in India, where it is a rare unisex name, Bangladesh, where it is a rare boy's name, and Saudi Arabia, where it is a very rare masculine name. In absolute terms, this name is the most popular in India, Bangladesh, and Indonesia. Much less frequently, Piku is the last name as well as the forename.
Mal, Gupta, Gogoi, Ghosh, Yadav, Mandal, Mondal, Sarkar, Sharma, Barman, Biswas, Kanwar, Kanvar, Kumari, Paswan, Prasad, Thakur, Halder, Samanta, Debnath, Karmakar, Mukherjee, Dutta, Chowdhury, Kumar, Bauri, Sah, Kar, Pal, Ram, Ray, Roy, Deb, Dey, Das, Jha, Saha, Sahu, Sinh, Bora, Khan, Paul, Devi, Jana, Nath, Mahto, Singh, Kundu, and Chakraborty