Cognomen Rujirojsakul (Rujirojsakul 
) , around the globe, is a very rare surname. The family name Rujirojsakul is characteristic of South-eastern Asia, particularly Thailand, where it is a very rare surname.
Ranu, Apinya, Titapa, Usanee, Chutimun, Watthana, Thaweechai, and Wattanatorn