Family name 古伦 (Gouran 
, 古伦 
) , in all the world, is a rare surname. The surname 古伦 is habitual in Libya, where it is a rare surname, Ireland, and Morocco. Not in comparison with a country's population, the name is most common in Iran, Morocco, and the United States. Likewise, 古伦 is the forename as well as the last name.