Family name 扬科 (Yanko 
, 扬科 
) , in the world, is quite a rare surname. The last name 扬科 is habitual in Bulgaria, where it is a rare surname, Cameroon, and New Zealand. Measured by absolute frequency, this name is the most popular in the United States, Mexico, and Canada. More frequently, 扬科 is the forename as well as the last name.