Surname Гюлен (Gülen 
, Gulen 
, Гюлен 
) , around the globe, is a common last name. The family name Гюлен is characteristic of Turkey, where it is quite a common surname, Malta, where it is quite a rare surname, and Denmark, where it is a rare surname. Measured by absolute frequency, the name is most common in Turkey, Philippines, and Germany. Much less frequently, Гюлен is the forename as well as the last name.