Last name 光洋 (Mitsuhiro 
, 光洋 ) , throughout the world, is quite a rare family name. The surname 光洋 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. More prevalently, 光洋 is the forename as well as the last name.