In the world, Ritthi (ฤทธี 
, ฤทธิ , Ritthi 
) is a rare principally male, but very infrequently girly first name. The first name Ritthi is characteristic of South-eastern Asia, particularly Thailand, where it is a rare principally masculine, but very infrequently feminine name. Also, Ritthi is the last name as well as the forename.