Oya Shizuka (大家志津香) is a Japanese singer and idol managed by Watanabe Entertainment. She is a former member of the Japanese pop girl group AKB48.
- Name: Oya Shizuka (大家志津香)
- Nickname: Shiichan (しーちゃん)
- Birthdate: December 28, 1991
- Birthplace: Fukuoka, Japan
- Blood Type: O
- Height: 167cm
- Bust: 84cm
- Waist: 63cm
- Hips: 89cm
- Bands / Groups:
AKB48 Song Participation
- AKB48 Team A 4th Stage "Tadaima Ren'aichuu" Revival
- Kikyou (Kenkyuusei understudy)
- AKB48 Kenkyuusei "Tadaima Ren'aichuu"
- AKB48 Team K 4th Stage "Saishuu Bell ga Naru"
- AKB48 Team B 3rd Stage "Pajama Drive"
- AKB48 Team B 4th Stage "Idol no Yoake"
- AKB48 Kenkyuusei "Idol no Yoake"
- AKB48 Team K 5th Stage "Saka Agari"
- AKB48 Team A 5th Stage "Ren'ai Kinshi Jourei"
- THEATRE G-ROSSO "Yume wo Shinaseru Wake ni Ikanai"
- AKB48 Kenkyuusei "Ren'ai Kinshi Jourei"
- AKB48 Team A 6th Stage "Mokugekisha"
- AKB48 Team B Waiting Stage
- AKB48 Team B 6th Stage "Pajama Drive"
- AKB48 Team A 7th Stage "M.T. ni Sasagu"
- AKB48 "Boku no Taiyou" Revival
- Originally a 4th generation member Kenkyuusei, she was promoted to Team A on July 27, 2010, then transferred to Team B during the AKB48 team shuffle in 2012. During the AKB48 Group Grand Shuffle in 2014, she was announced as sub-captain of Team B with Kuramochi Asuka as captain, then transferred back to Team A during the AKB48 team shuffle in 2015. She was transferred back to Team B during the AKB48 team shuffle in 2017. She announced her graduation on November 20, 2021, and she graduated on December 28, 2021.
- She is close with Kitahara Rie, Sashihara Rino, Komori Mika, and Yokoyama Yui.
- Her oshimen is Kobayashi Kana.
- Favorite food: Ice, dried cuttlefish, strawberry crepes, sweet green peppers
- Favorite drink: Barley tea
- Favorite artist: Yuzu & Pornograffiti
- Favorite TV show: Tokudane
- Favorite magazine: Popteen and Owarai Poporo
- Favorite season: Spring and summer
- Favorite brand: HbG, Tommy Girl, ValenTine’s, and High
- Favorite AKB single: Yuuhi wo Miteiru ka and Keibetsu Shiteita Aijou
- Favorite AKB stage song: Cinderella wa Damasarenai and Shinkirou & Kikyou
- Favorite AKB outfit: The opening outfits from Tadaima Renaichuu
- In the 2010 AKB Visual Book's 48 questions section, she says her hobbies include reducing her gas and electric bill.
- Is well known for her wacky antics on AKBINGO!.