Family name 本光 (Honko 
, 本光 , Benguang 
) , throughout the world, is a rare last name. The cognomen 本光 is characteristic of Finland, where it is quite a rare surname, Japan, where it is a rare surname, and Germany. Not in comparison with a country's population, it is commonest in China, Finland, and Japan. More prevalently, 本光 is the forename as well as the last name.