Surname Берку (Bercu 
, Берку 
) , around the globe, is quite a rare cognomen. The last name Берку is characteristic of Romania, where it is quite a rare surname, France, where it is a rare surname, and Argentina. Not in comparison with a country's population, it is the most numerous in Romania, France, and the United States. Very seldom, Берку is the forename as well as the last name.