Cognomen まさゆき (Masayuki 
, まさゆき) , across the world, is quite a common last name. The surname まさゆき is habitual in Japan, where it is quite a rare surname, Taiwan, and Singapore, where it is a rare surname. Measured by absolute frequency, it most frequently occurs in Eastern Asia, particularly Japan, China, and Taiwan. Likewise, まさゆき is the forename as well as the last name.