Cognomen Watjanarat (Watjanarat 
) , around the world, is a very rare last name. The surname Watjanarat is characteristic of South-eastern Asia, particularly Thailand, where it is a very rare surname. More prevalently, Watjanarat is the forename as well as the last name.
Bunniam, Panwong, Jaralee, Nitchot, Sanukarn, Chimplee, Luangdilok, Narmthang, Petcharat, Petprapan, Plaichaiyaphum, Jaroenpetsap, and Buawiratlerd