Cognomen Rattanawadi (รัตนวดี 
, Rattanawadi 
) , in the entire world, is a very rare last name. The last name Rattanawadi is habitual in South-eastern Asia, particularly Thailand, where it is a very rare surname. Predominantly, Rattanawadi is the forename as well as the last name.
Kato, Supharanana, Pakkawesung, Saenchalieo, Thirakhot, Pichaiyut, Kaeoseng, Phangphakdi, Butsaban, Limwicit Ilian, Kansing, Chansuk, Samakki, Niothong, Raksi, Yothalak, and Rattanamani