Surname 贾森 (Jason 
, Jasen , 贾森 ) , in the world, is a common cognomen. The last name 贾森 is habitual in Namibia, where it is quite a common surname, Marshall Islands, and British Virgin Islands (explore the name in all countries). Not in comparison with a country's population, it is commonest in Indonesia, the United States, and China. Much more frequently, 贾森 is the forename as well as the last name.