Cognomen Katsunori (Katsunori 
, 하라 
, カツノリ ) , in all the world, is a common family name. The family name Katsunori is habitual in Japan, where it is quite a common surname, Taiwan, where it is a rare surname, and Singapore. Measured by absolute frequency, the name is most common in Eastern Asia, particularly Japan, China, and Taiwan. Much less frequently, Katsunori is the forename as well as the last name.