Shigeru (written: , , , in hiragana or in katakana) is a masculine Japanese given name. Notable people with the name include:
- , Japanese long-distance runner
- , Japanese professional midget wrestler
- , Japanese actor
- , Japanese painter
- , Japanese former volleyball player
- , Japanese professional Go player
- , Japanese architect
- , Japanese voice actor
- , Japanese baseball second baseman
- , Japanese politician
- , Japanese karateka
- , Japanese sport wrestler
- , Japanese career military officer and lieutenant general
- , Japanese admiral and Chief
- , Japanese general
- , Japanese prominent politician
- , Japanese mathematician
- , Japanese ophthalmologist, surgeon and amateur astronomer
- , Japanese politician
- , Japanese politician
- , Japanese socialist politician
- , Japanese military officer
- , Japanese painter and printmaker
- , Japanese actor and singer
- , Japanese musician, actor and agricultural entrepreneur
- , Japanese professional baseball player
- , Japanese composer and conductor
- , Japanese lightweight freestyle wrestler
- , Japanese artistic gymnast
- , Japanese general
- , Japanese Ainu activist
- , Japanese police officer
- , Japanese anime producer
- , Japanese baseball player
- , Japanese cinematographer
- , Japanese rugby player
- , Japanese actor
- , Japanese gymnast
- , Japanese children's poet, children's song writer, fairy tale writer and educator
- , Japanese baseball shortstop, second baseman and coach
- , Japanese singer and actor
- , Japanese rower
- , Japanese former professional baseball infielder and manager
- , expert on yokai and creator of the popular manga series Ge Ge Ge no Kitaro, and others
- , Japanese voice actor
- , Japanese baseball player
- , Japanese former football player
- , Japanese painter
- , Japanese mathematician
- , Japanese actress
- , Japanese voice actor
- , Japanese legal scholar, sociologist, and Christian thinker
- , Japanese renju player
- , Japanese artist
- , Japanese historian of science
- , Japanese political scientist
- , Japanese painter and artist
- , Japanese politician
- , Japanese professional golfer
- , Japanese jurist, judge on the International Court of Justice from 1976 to 2003
- , Japanese video game director, designer, and developer
- , Japanese retired judoka
- , Japanese President of the Japan Community Health Care Organization
- , Japanese visual artist
- , Japanese former professional tennis player
- , Japanese karateka
- , Japanese mixed martial arts promoter
- , Japanese government official
- , Japanese former football player
- , Japanese general
- , Japanese ice hockey player
- , Japanese ichthyologist
- , Japanese retired long-distance runner
- , Japanese former Nippon Professional Baseball infielder
- , Japanese professional baseball pitcher and coach
- , Japanese bodybuilding champion
- , Japanese manga artist
- , Japanese musician, songwriter and guitarist
- , Japanese long jumper
- , Japanese former general manager of the Yokohama DeNA BayStars
- , Japanese football player
- Shigeru Takashina (1943–2013), Japanese karateka
- , Japanese photographer
- , Japanese illustrator, animator, filmmaker and manga artist
- , Japanese author
- , Japanese actor
- , Japanese professional golfer
- , Japanese politician
- , Japanese anime storyboard artist and director
- , Japanese automotive engineer
- , Japanese film score composer
- , Japanese actor and voice actor
- , Japanese film producer and journalist
- , Japanese murderer, former hostess club owner and possible serial killer
- , Japanese footballer
- , Japanese diplomat and politician, Prime Minister
- , Japanese bureaucrat and politician
Fictional characters
- , from Akagi
- , a character from Neon Genesis Evangelion
- Emperor Shigeru, a character in the Ranger's Apprentice series by John Flanagan.
- , protagonist of Kamen Rider Stronger
- , a character from Yakitate!! Japan
- , the Japanese name of Gary Oak, a Pokémon character (named after Shigeru Miyamoto)
- Otori Shigeru, a character in Lian Hearn's trilogy Tales of the Otori
- Shigeru Yahaba, a character from Haikyu!!