Family name Pilak (Pilak 
, Perak 
) , around the globe, is quite a rare cognomen. The cognomen Pilak is habitual in Southern Europe, particularly Croatia, where it is quite a common surname, Montenegro, where it is quite a rare surname, and Serbia. Not in comparison with a country's population, this name is the most popular in Indonesia, Croatia, and Malaysia. Likewise, Pilak is the forename as well as the last name.