Last name Katsuyuki (克行 
, Katsuyuki 
, 克幸 ) , all around the world, is quite a rare cognomen. The family name Katsuyuki is characteristic of Japan, where it is a rare surname, Taiwan, and Singapore. Not in comparison with a country's population, it most frequently occurs in Eastern Asia, particularly Japan, China, and Taiwan. Also, Katsuyuki is the forename as well as the last name.