Cognomen Kittiviroj (Kittiviroj 
) , in the world, is a very rare surname. The last name Kittiviroj is characteristic of South-eastern Asia, particularly Thailand, where it is a very rare surname. Much less frequently, Kittiviroj is the forename as well as the last name.
Sumret, Adipong, Piyawan, Siriphen, Raviphon, Thanawat, Boonyaluck, and Ratchaphon