Cognomen 政行 (Masayuki 
, 政行 ) , globally, is quite a common last name. The last name 政行 is habitual in Japan, where it is quite a rare surname, Taiwan, and Singapore, where it is a rare surname. Not in comparison with a country's population, the name is most common in Eastern Asia, particularly Japan, China, and Taiwan. Also, 政行 is the forename as well as the last name.