Stephanie Wagner (born 17 September 1994) is a German tennis player. She has a career-high singles ranking by the Women's Tennis Association (WTA) of 263, achieved on 14 September 2020. She also has a career-high doubles ranking of world No. 546, reached on 25 November 2019. Wagner made her WTA Tour main-draw debut at the 2021 Courmayeur Ladies Open, where she qualified for the main draw, defeating Tara Moore in the final qualifying round. She played collegiate tennis for the Miami Hurricanes at the University of Miami in Coral Gables, Florida.