Mikio (written: , , , , , , , , , in hiragana or in katakana) is a masculine Japanese given name. Notable people with the name include:

, Japanese politician

, Japanese comedian

, Japanese composer, music arranger and producer

, Japanese politician

Mikio Hasemoto (1916–1943), American soldier and Medal of Honor recipient

, Japanese ice hockey player

, Japanese manga artist

, Japanese manga artist

, Japanese sport shooter

, Japanese alpine skier

, Japanese footballer

, Japanese ice hockey player

Japanese jurist, educator and politician

, Japanese actor

, Japanese film director, screenwriter and producer

, Japanese athlete

, Japanese speed skater

, Japanese singer-songwriter

, Japanese chief executive

, Japanese mathematician

, Japanese politician

, Japanese keyboardist

, Japanese karate master

, Japanese scientist

Japanese masculine given names

Masculine given names

Mikio