Okuda Aya (b. 27 November 1988) is a female Japanese professional 3-dan. She was a pupil of Obuchi Morito.
She has been the runner-up in the 4th Daiwa Ladies Cup (2010), 31st Female Honinbo (2012), 25th Female Meijin (2013), 1st Aidu Chuo Hospital Cup (2014) and 4th SGW Cup (2021).
From 2013 to 2015, she was on the Japanese team in the Huang Longshi Shuang Deng Cup. In all three cases she lost her first game.
- 2004: 1d, 2004-04-01
- 2007: 2d, 2007-06-08
- 2011: 3d
- 2019: 4d
- Nihon Kiin profile: Profile