Family name Gellan (格兰 
, Gellan 
) , throughout the world, is a rare last name. The cognomen Gellan is habitual in Austria, where it is a rare surname, Ethiopia, and Australia, where it is a very rare surname. Measured by absolute frequency, this name is the most popular in Ethiopia, China, and the United Kingdom. More prevalently, Gellan is the forename as well as the last name.