Greet Minnen (born 14 August 1997) is a Belgian tennis player. Minnen has career-high WTA rankings of world No. 59 in singles and No. 45 in doubles, achieved on 16 October 2023 and on 8 January 2024, respectively.
In her last year as a junior, Minnen reached the girls' doubles final of the 2015 Australian Open, losing in two sets.
Minnen made her WTA Tour main-draw debut at the 2018 Luxembourg Open in doubles, partnering Alison Van Uytvanck. They won the title, defeating Vera Lapko and Mandy Minella in the final, in two sets. In May 2021, again partnering Van Uytvanck, they lost in a second WTA Tour doubles final to Aleksandra Krunić and Nina Stojanović in Belgrade.
In September 2021, she reached the third round at the 2021 US Open as a lucky loser defeating Nadia Podoroska and Liudmila Samsonova. Next, she won the 2021 Luxembourg Open, her second tour doubles title, also partnering Van Uytvanck.
At the 2022 French Open, she reached the quarterfinals in doubles partnering with Anna Bondár. In the first round of the 2022 Wimbledon Championships, she beat former Wimbledon champion and former world No. 1, Garbiñe Muguruza, 6–4, 6–0, and scored the first top-10 win of her career.
At the 2023 French Open, she reached consecutive quarterfinals in doubles, partnering again with Anna Bondár. She reached the third round for the second time at the US Open, as a qualifier, defeating wildcard Venus Williams en-route, 6–1, 6–1 in 73 minutes, and Sachia Vickery, climbing 29 spots to world No. 69 on 11 September 2023 and to a new career-high in singles of No. 59 a month later, on 16 October 2023.
At the WTA 1000 Qatar Open, she recorded her first win at this level over Tatjana Maria. At the next WTA 1000, the 2024 Miami Open, she replaced 18th seed Barbora Krejčíková as a lucky loser directly into the second round and defeated Lesia Tsurenko to reach the third round for the first time at this level in her career.
At the WTA 1000 2024 China Open, she again reached the third round for the second time in the season and in her career at this level, with wins over two Russians Erika Andreeva and 28th seed Anastasia Potapova, notching the 10th Top 50 win of her career -- six of which came in 2024.