Cognomen Thag (Thag 
) , across the world, is a rare family name. The last name Thag is habitual in Saudi Arabia, where it is a rare surname, Myanmar, where it is a very rare surname, and Malaysia. In absolute terms, it most frequently occurs in India, Philippines, and Myanmar. More frequently, Thag is the forename as well as the last name.
Le, Uranv, Manjhi, Mahato, Sahani, Sharma, Ansari, Baitha, Bhagat, Pandit, Paswan, Prasad, Gurung, Thakur, Nguyen, Hajara, Musahar, Mukhiya, Chauhan, Chettri, Bahadur, Mushahar, Yadav, Devan, Patel, Kurmi, Ho, Sah, Bin, Pal, Ram, Ray, Rav, Roy, Das, God, Chaudhari, Mazi, Pham, Raut, Devi, Gadi, Guro, Tran, Mahto, Miyan, Sahni, Singh, Miya, and Kushavaha