Family name Chuko (Chuko 
, Тюко 
) , around the globe, is quite a rare last name. The cognomen Chuko is habitual in Japan, where it is quite a rare surname, Belarus, where it is a rare surname, and Ukraine, where it is a very rare surname. In absolute terms, it is the most numerous in Japan, Nigeria, and Ukraine. More prevalently, Chuko is the forename as well as the last name.