Last name カツムラ (カツムラ 
, Katsumura 
) , in the entire world, is a very rare family name. The family name カツムラ is habitual in New Zealand, where it is a very rare surname, Japan, and Thailand. Measured by absolute frequency, it is the most numerous in Japan, Thailand, and the United States. More prevalently, カツムラ is the forename as well as the last name.