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Harmony Tan (born 11 September 1997) is a French professional tennis player.
Tan has career-high WTA rankings of world No. 90 in singles and 302 in doubles. She has won eight singles titles and one doubles title on the ITF Women's Circuit.
Tan made her WTA Tour and Grand Slam main-draw singles debut at the 2018 US Open, where she entered the main draw on a wildcard, losing her first-round match to Eugenie Bouchard, 3–6, 1–6.
Tan made her main-draw singles debut on the WTA Challenger Tour in January 2019 in Newport Beach, where she won her first- and second-round matches (against Katharina Gerlach and Sachia Vickery, respectively) before losing to Taylor Townsend. In May 2019, Tan entered a WTA Tour singles main draw for only the second time in her career in Strasbourg thanks to a wildcard; she lost her first-round match to No. 7 seed, Zheng Saisai, 6–7, 6–7.
In 2022, at her first Wimbledon, ranked No. 115, Tan defeated Serena Williams in three sets with a super tiebreak 7–5, 1–6, 7-6 (10-7) in the first round after 3 hours and 10 minutes, the longest match thus far at the tournament. After that marathon match she withdrew late, only an hour before her match in the doubles' competition prompting her partner Tamara Korpatsch to express, in a since-deleted social media post, her anger and disappointment at not being able to participate in the event on her debut. She continued her good run by beating Sara Sorribes Tormo in the second round and home favorite Katie Boulter in the third. Her run came to an end in the fourth round where she fell to 20th seed Amanda Anisimova, in straight sets.
Performance timelines
Key
W
F
SF
QF
#R
RR
Q#
P#
DNQ
A
Z#
PO
G
S
B
NMS
NTI
P
NH
(W) winner; (F) finalist; (SF) semifinalist; (QF) quarterfinalist; (#R) rounds 4, 3, 2, 1; (RR) round-robin stage; (Q#) qualification round; (P#) preliminary round; (DNQ) did not qualify; (A) absent; (Z#) Davis/Fed Cup Zonal Group (with number indication) or (PO) play-off; (G) gold, (S) silver or (B) bronze Olympic/Paralympic medal; (NMS) not a Masters tournament; (NTI) not a Tier I tournament; (P) postponed; (NH) not held; (SR) strike rate (events won / competed); (W–L) win–loss record.
To avoid confusion and double counting, these charts are updated at the conclusion of a tournament or when the player's participation has ended.
Only main-draw results in WTA Tour, Grand Slam tournaments, Fed Cup/Billie Jean King Cup, and Olympic Games are included in win/loss records.
The first Premier 5 event of the year has switched back and forth between the Dubai Tennis Championships and the Qatar Open since 2009. Dubai was classified as a Premier 5 event from 2009 to 2011 before being succeeded by Doha for the 2012–2014 period. In 2015, Dubai regained its Premier 5 status while Doha was demoted to Premier status. The Premier 5 tournaments were reclassified as WTA 1000 tournaments in 2021.
Tan at the 2023 French Open
France
Eva Wacanno
María Irigoyen
Margarita Lazareva
Fernanda Brito
María José Luque Moreno
Jaqueline Cristian
Zheng Saisai
Ellen Perez
Hsu Chieh-yu 
Marcela Zacarías
Tayisiya Morderger 
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