Cognomen Ruam (รวม 
, Ruam 
, ร้วม) , in the world, is a rare family name. The surname Ruam is characteristic of Philippines, where it is a rare surname, Australia, where it is a very rare surname, and Malaysia. In absolute terms, this name is the most popular in Philippines, China, and Malaysia. More prevalently, Ruam is the forename as well as the last name.