Cognomen Хидэо (Hideo 
, Хидэо, Izumitani 
) , worldwide, is a common family name. The family name Хидэо is characteristic of Japan, where it is quite a rare surname, Taiwan, and Singapore, where it is a rare surname. Measured by absolute frequency, this name is the most popular in Eastern Asia, particularly Japan, China, and Taiwan. Likewise, Хидэо is the forename as well as the last name.