- Birth Name: Oda Ayaka (小田彩加)
- Nicknames: Odachan (おだちゃん), ODA
- Date of Birth: February 9, 1999
- Place of Birth: Fukuoka, Japan
- Height: 153cm
- Bands / Groups:
HKT48 Song Participation
|Bugtte Iijan||Bugtte Iijan|
|Hakusen no Uchigawa de||4th Generation|
|Boku Dake no Hakujitsumu||Platinum Girls|
|Kiss wa Matsu Shikanai no Deshou ka?||Sakuranbo wo Musuberu ka?||4th Generation|
|Tonari no Kare wa Kakkoyoku Mieru||Platinum Girls|
|Koisuru Ribbon!||Murashige Senbatsu|
- Originally a fourth generation member of HKT48 Kenkyuusei, she was promoted to Team TII on November 26, 2017.
- Her favorite color is yellow.
- She appeared on the TV show HKT48 no Goboten! twice before her debut, once with Sashihara Rino and another time with Komada Hiroka and Matsuoka Natsumi. During the episode, Matsuoka commented that Oda would be a good candidate for the next generation of HKT48 members.