Family name 伸康 (Nobuyasu 
, 伸康 ) , in the entire world, is quite a rare last name. The last name 伸康 is habitual in Japan, where it is quite a rare surname, Hungary, where it is a very rare surname, and Brazil, where it is an extremely rare surname. Measured by absolute frequency, it is commonest in Japan, China, and Brazil. More prevalently, 伸康 is the forename as well as the last name.