Oana Georgeta Simion (born 8 March 1996) is a Romanian tennis player.
Simion has a career-high singles ranking by the Women's Tennis Association (WTA) of 380, achieved 26 July 2021. She also has a career-high WTA doubles ranking of 268, set on 30 January 2023.
Simion made her WTA Tour main-draw debut at the 2021 Winners Open.