Last name جيليان (Gillian 
, Jillian , جيليان 
) , worldwide, is quite a common family name. The family name جيليان is characteristic of Cameroon, where it is quite a rare surname, Israel, and Honduras. Measured by absolute frequency, the name is most common in Cameroon, the United States, and Spain. Much more prevalently, جيليان is the forename as well as the last name.