Last name Yong-Ju (용주 
, Yong-Ju 
) , in the world, is an extremely rare cognomen. Predominantly, Yong-Ju is the forename as well as the last name. Parts of the name also exists independently as a first name Yong, and a last name Ju.
Cha, Kim, Lee, Park, Jeon, Barthélémy, and Reichenberger