Okuda Aya (b. 27 November 1988) is a female Japanese professional 3-dan. She is a pupil of Obuchi Morito.
She has been the runner-up in the 4th Daiwa Ladies Cup (2010), 31st Female Honinbo (2012), and 1st Aidu Chuo Hospital Cup (2014).
- 2004: 1d, 2004-04-01
- 2007: 2d, 2007-06-08
- 2011: 3d