Cognomen Масако (Masako 
, 庄子 , Масако 
) , around the globe, is quite a rare family name. The last name Масако is characteristic of Taiwan, where it is quite a rare surname, Japan, where it is a rare surname, and South Africa. Measured by absolute frequency, it most frequently occurs in Eastern Asia, particularly Japan, China, and Taiwan. Much more prevalently, Масако is the forename as well as the last name.