Family name 延奇 (Yanqi 
, 延奇 , Jentzsch 
) , in the entire world, is quite a common cognomen. The last name 延奇 is habitual in Germany, where it is quite a rare surname, Austria, and Denmark, where it is a rare surname. Not in comparison with a country's population, it most frequently occurs in Germany, the United States, and China. Also, 延奇 is the forename as well as the last name.