Family name Gilfer (Gilfer 
, Гильфер 
) , in the entire world, is a rare last name. The last name Gilfer is characteristic of Kazakhstan, where it is a rare surname, Kyrgyzstan, where it is a very rare surname, and Georgia. Measured by absolute frequency, it is commonest in Kazakhstan, Russia, and Germany. Likewise, Gilfer is the forename as well as the last name.