Surname รุหาญ (รุหาญ , Ruharn ) , in all the world, is an extremely rare cognomen. Much more prevalently, รุหาญ is the forename as well as the last name.
Ruhan
ธนินธญางกูร, and ถิรญาธรณ์
, Ruharn 
) , in all the world, is an extremely rare cognomen. Much more prevalently, รุหาญ is the forename as well as the last name.