In all the world, Katto (Katto 
, Катто 
) is quite a rare largely female, but seldom boy's first name. The first name Katto is habitual in India, where it is a rare principally feminine, but very seldom male name, Tanzania, where it is a rare male name, and Japan, where it is a very rare boy's name. In absolute terms, this name is the most popular in India, Nigeria, and Japan. Also, Katto is the last name as well as the forename.