Cognomen 光博 (Mitsuhiro 
, 光博 ) , across the world, is quite a rare surname. The last name 光博 is characteristic of Japan, where it is a rare surname, Taiwan, and Hungary. Not in comparison with a country's population, it is commonest in Eastern Asia, particularly Japan, China, and Taiwan. Likewise, 光博 is the forename as well as the last name.