Cognomen Rjak (Rjak 
) , around the world, is quite a rare family name. The family name Rjak is habitual in Southern Asia, particularly India, where it is a very rare surname. Very seldom, Rjak is the forename as well as the last name.
Ram, Umesh, Mithun, Mukesh, Sanjay, Suresh, Sntosh, Arvind, Ashish, Pankaj, Pradip, Pramod, Prwesh, Ramesh, Ranjit, Rajesh, Rakesh, Rupesh, Deepak, Dinesh, Govind, Gopaal, Vijay, Rinku, Rahul, Pintu, Raj, Shiv, Sonu, Anil, Arun, Ajay, Prem, Raju, Ravi, Manoj, Tuntun, Mohan, Sunil, Anand, Anila, Abdul, Ashok, Bablu, Bindu, Bhola, Pappu, Prmod, Munna, and Nandan