Surname Ruthaikan (Ruthaikan 
) , in the entire world, is an extremely rare family name. Much more frequently, Ruthaikan is the forename as well as the last name.
Sakkuna, Nakseng, Wongrat, Ketthong, Jungphattanawadee, Wongrath, Boonsanit, Phansathit, and Jungpattanawadee