Family name Ян-Ян (Ян-Ян 
) , all over the world, is an extremely rare surname. The last name Ян-Ян is characteristic of Central Asia, particularly Kyrgyzstan, where it is a very rare surname. Likewise, Ян-Ян is the forename as well as the last name. Parts of the name also exists independently as a first name Ян, and a first name Ян.