Mayar Sherif Ahmed Abdel-Aziz is an Egyptian tennis player. She has career-high WTA rankings of No. 31 in singles, achieved on 19 June 2023, making her the highest ranked Egyptian player in the Open Era. She also has a career-high ranking of No. 88 in doubles, reached on 11 July 2022. Sherif has won one singles title on the WTA Tour, at the 2022 Emilia-Romagna Open. She has also won a record six WTA 125 singles titles and one doubles title on the WTA Challenger Tour along with nine singles titles and six doubles titles on the ITF Women's Circuit. She is the younger sister of Rana Sherif Ahmed.
Sherif spent her final two years of college at Pepperdine University in Malibu, California, graduating in 2018 with a bachelor of science in sports medicine. She was part of the university's tennis team and was an All-American in both 2017 and 2018, and the West Coast Conference Player of the Year in 2018. She made the semifinals of the 2018 NCAA singles tournament and ended her senior season ranked 11th in the nation in singles.
Sherif made her WTA Tour singles debut at the 2020 Prague Open. She was the first Egyptian female player in a main draw of a Grand Slam tournament, at the 2020 French Open. She made history again for Egyptian tennis at the 2021 Australian Open, becoming the first woman from her nation to win a Grand Slam main-draw match. She became also the first Egyptian woman to qualify for the Olympic Games and reach a WTA tournament final in Cluj-Napoca. At the 2023 Madrid Open, she became the first Egyptian player to reach a WTA 1000 quarterfinal.
Playing for Egypt Fed Cup team, she has a win–loss record of 19–11 (in doubles: 10–5) in Fed Cup competition.
