Surname Rudar (Rudar 
, Рудар 
) , globally, is a rare cognomen. The cognomen Rudar is habitual in Romania, where it is a rare surname, Ukraine, where it is a very rare surname, and the United States. In absolute terms, this name is the most popular in India, the United States, and Romania. More frequently, Rudar is the forename as well as the last name.