Donna Vekić (Croatian pronunciation: ; born 28 June 1996) is a Croatian professional tennis player. She has won two singles titles on the WTA Tour: the 2014 Malaysian Open and the 2017 Nottingham Open. She has also won five singles titles and one doubles title on the ITF Women's Circuit. Her best performance in a Grand Slam singles event was a fourth-round appearance at the 2018 Wimbledon Championships and the 2019 French Open. On 10 June 2019, she achieved her career-high singles ranking of world No. 22.
Born in Osijek, Vekić is a member of the Croatia Fed Cup team. In February 2012, she played three rubbers at the tournament, including helping her country to a 2–0 win over Bosnia and Herzegovina.
At the 2012 Tashkent Open, Vekić made it to her first WTA Tour final. It was her first main-draw appearance at a WTA tournament, and she was the youngest player in six years to make it to the final of a WTA event. She was defeated by Irina-Camelia Begu in straight sets.