Surname Bilgis (Bilgis 
, บิลกิส ) , in the entire world, is a rare last name. The cognomen Bilgis is habitual in Indonesia, where it is a very rare surname, Turkey, where it is an extremely rare surname, and Germany. In absolute terms, it is commonest in Indonesia, India, and Turkey. Likewise, Bilgis is the forename as well as the last name.