Okazaki Momoko (岡崎百々子) is a Japanese singer and model. She is a former member and the Ganbare Chairman of idol girl group Sakura Gakuin and its sub-units Minipati and Kagaku Kyumei Kiko LOGICA?:ver.2.0. On March 31, 2018, Momoko's contract under the agency Amuse has ended.
- Name: Okazaki Momoko (岡崎百々子; 오카자키 모모코)
- Nickname: Motan, Zakioka, Moko-chan
- Birthdate: March 3, 2003
- Birthplace: Kanagawa, Japan
- Height: 162cm
- Hobbies: Listening to western music, daydreaming while soaking in the bathtub
- Specialties: Dancing, finger wave, playing kazoo (instrument)
- Footsize: 24cm
- Favorite Hairstyles: Half Up, Ponytail
- One Thing you wish can come true: Stop happy time / I want to live with all the members
- Favorite dish in lunchbox: Hamburg Steak
- What do you like/dislike about yourself: I don't get too jealous / I cannot be honest.
- Former member of idol girl group Sakura Gakuin (May 2015-Mar 2018).
- Model for Japanese fashion magazine LOVE berry (ラブベリー).
- Touring member of BABYMETAL in 2019.
-  Itazura na Kiss THE MOVIE: High School - Irie Rika
-  Saki Achiga-hen episode of side-A - Kurumai Hiyakka
-  Saki Achiga-hen episode of side-A - Kurumai Hiyakka (Ep. 3)
-  Shimajiro no Wao! - Goo Choki Pa de Pumpkin
-  Shuoh Gakuen Gassho-bu - Ichijyo Misaki
- [2017-2018] Kuroshitsuji -Tango on the Campania- - Elizabeth Midford