Family name 大介 (Daisuke 
, Nishio , 大介 ) , worldwide, is quite a common cognomen. The surname 大介 is characteristic of Eastern Asia, particularly Taiwan, where it is quite a rare surname, Hong Kong, and Japan. Not in comparison with a country's population, it is commonest in Eastern Asia, particularly China, Japan, and Taiwan. Likewise, 大介 is the forename as well as the last name.