Onodera (written: 小野寺 or オノデラ in katakana) is a Japanese surname. Notable people with the surname include:

Fictional characters

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  • Haru Onodera (小野寺 春), a character in the manga series Nisekoi
  • Kosaki Onodera (小野寺 小咲), a character in the manga series Nisekoi
  • Ritsu Onodera (小野寺 律), a character in the manga series Sekai-ichi Hatsukoi
  • Yusuke Onodera (小野寺 ユウスケ), a character in the television series Kamen Rider Decade