Cognomen Курияма (Kuriyama 
, 栗山 , Курияма 
) , throughout the world, is quite a rare family name. The cognomen Курияма is characteristic of Japan, where it is a rare surname, Brazil, and Singapore. In absolute terms, this name is the most popular in Brazil, Japan, and the United States. Very seldom, Курияма is the forename as well as the last name.