Cognomen トモヒロ (Tomohiro 
, トモヒロ ) , in the world, is a common last name. The cognomen トモヒロ is habitual in Japan, where it is quite a common surname, Singapore, where it is a rare surname, and Hungary. Measured by absolute frequency, it most frequently occurs in Japan, China, and Singapore. Much less frequently, トモヒロ is the forename as well as the last name.