Family name Keiichiro (Keiichiro 
) , across the world, is a rare last name. The last name Keiichiro is characteristic of Singapore, where it is a rare surname, Japan, where it is a very rare surname, and Spain. Not in comparison with a country's population, it is the most numerous in China, Japan, and Singapore. Likewise, Keiichiro is the forename as well as the last name.