Surname 加均 (Jiajun 
, 加均 ) , in all the world, is a rare cognomen. The last name 加均 is habitual in Singapore, where it is quite a rare surname, Taiwan, where it is a rare surname, and Malaysia. Measured by absolute frequency, it most frequently occurs in China, Taiwan, and Malaysia. Much more frequently, 加均 is the forename as well as the last name.