Last name ヒデオ (Hideo 
, ヒデオ ) , throughout the world, is a common family name. The cognomen ヒデオ is characteristic of Japan, where it is quite a common surname, Taiwan, where it is quite a rare surname, and Singapore, where it is a rare surname. In absolute terms, it is the most numerous in Eastern Asia, particularly Japan, China, and Taiwan. Much less frequently, ヒデオ is the forename as well as the last name.