All over the world, Икуо (Ikuo 
, Икуо 
) is a rare dominantly boy's, but uncommonly female first name. The given name Икуо is habitual in Japan, where it is a rare male name, Nigeria, where it is a very rare girly name, and France, where it is a very rare boy's name. Not in comparison with a country's population, the name is most common in Japan, Nigeria, and the United States. Also, Икуо is the last name as well as the forename.