| Doubles | |
|---|---|
| 2020 Internationaux de Strasbourg | |
| Champions |  Nicole Melichar  Demi Schuurs |
| Runners-up | Hayley Carter  Luisa Stefani |
| Final score | 6–4, 6–3 |
Daria Gavrilova and Ellen Perez were the defending champions [1] but Gavrilova chose not to participate. Perez played alongside Storm Sanders but lost in the first round to Nicole Melichar and Demi Schuurs.
Melichar and Schuurs went on to win the title, defeating Hayley Carter and Luisa Stefani in the final, 6–4, 6–3.
Nicole Melichar / Demi Schuurs (champions)
Gabriela Dabrowski / 
Jeļena Ostapenko (semifinals)
Shuko Aoyama / Ena Shibahara (semifinals) Hayley Carter / Luisa Stefani (final)| First round | Quarterfinals | Semifinals | Final | ||||||||||||||||||||||||
| 1 | N Melichar D Schuurs | 6 | 6 | ||||||||||||||||||||||||
 E Perez S Sanders | 4 | 3 | 1 | N Melichar D Schuurs | 6 | 6 | |||||||||||||||||||||
 L Kichenok N Kichenok | 66 | 6 | [13] |  A-L Friedsam  K Srebotnik | 2 | 3 | |||||||||||||||||||||
| A-L Friedsam K Srebotnik | 78 | 2 | [15] | 1 | N Melichar D Schuurs | 6 | 77 | ||||||||||||||||||||
| 3 | S Aoyama E Shibahara | 6 | 6 | 3 | S Aoyama E Shibahara | 2 | 63 | ||||||||||||||||||||
 E Alexandrova  O Kalashnikova | 2 | 4 | 3 | S Aoyama E Shibahara | 6 | 6 | |||||||||||||||||||||
| PR | K Bondarenko S Fichman | 6 | 7 | PR | K Bondarenko S Fichman | 4 | 3 | ||||||||||||||||||||
| WC |  C Burel D Parry | 2 | 5 | 1 | N Melichar D Schuurs | 6 | 6 | ||||||||||||||||||||
| 4 | H Carter L Stefani | 4 | 3 | ||||||||||||||||||||||||
S Stephens  J Teichmann | 2 | 4 | |||||||||||||||||||||||||
| M Kato S Santamaria | 77 | 3 | [8] | 4 | H Carter L Stefani | 6 | 6 | ||||||||||||||||||||
| 4 | H Carter L Stefani | 64 | 6 | [10] | 4 | H Carter L Stefani | 6 | 6 | |||||||||||||||||||
 A Guarachi D Krawczyk | 4 | 79 | [4] | 2 | G Dabrowski J Ostapenko | 3 | 4 | ||||||||||||||||||||
| N Hibino M Ninomiya | 6 | 67 | [10] | N Hibino M Ninomiya | 5 | 1 | |||||||||||||||||||||
K Christian  G Olmos | 2 | 6 | [5] | 2 | G Dabrowski J Ostapenko | 7 | 6 | ||||||||||||||||||||
| 2 | G Dabrowski J Ostapenko | 6 | 3 | [10] | |||||||||||||||||||||||
Nicole Melichar and Anna Smith were the defending champions, but Smith chose to compete in Strasbourg instead. Melichar played alongside Květa Peschke, but lost in the semifinals to Demi Schuurs and Katarina Srebotnik.
The Czech Republic's Barbora Krejčíková and Kateřina Siniaková defeated Switzerland's Belinda Bencic and Viktorija Golubic in the final, 7–5, 6–1 to win the gold medal in Women's Doubles tennis at the 2020 Summer Olympics. It was the Czech Republic's first victory in women's doubles, and its third consecutive medal. In the bronze medal match, Brazil's Laura Pigossi and Luisa Stefani defeated Veronika Kudermetova and Elena Vesnina of the Russian Olympic Committee, 4–6, 6–4, [11–9]. It was Brazil's first Olympic tennis medal.
Lucie Hradecká and Andreja Klepač were the defending champions, but lost in the semifinals to Květa Peschke and Demi Schuurs.
This was the first edition of the tournament. Shuko Aoyama and Ena Shibahara won the title, defeating Hayley Carter and Luisa Stefani in the final, 7–6(7–5), 6–4.
Elise Mertens and Aryna Sabalenka defeated Barbora Krejčíková and Kateřina Siniaková in the final, 6–2, 6–3, to win the women's doubles tennis title at the 2021 Australian Open. This was Mertens and Sabalenka's second Grand Slam doubles title as a team after they first won the 2019 US Open. By virtue of winning the title, Sabalenka claimed the world No. 1 doubles ranking.
Two-time defending champion Barbora Krejčíková and her partner, Rajeev Ram, defeated Samantha Stosur and Matthew Ebden in the final, 6–1, 6–4, to win the mixed doubles tennis title at the 2021 Australian Open. This was the second major mixed doubles title Krejčíková and Ram won together as a team after they won their first at the 2019 Australian Open. The pair saved a match point in their second round match against Ena Shibahara and Ben McLachlan en route to the title.
Nicole Melichar and Xu Yifan were the defending champions but Melichar chose not to participate. Xu partnered Yang Zhaoxuan, but they lost in the semifinals to Hayley Carter and Luisa Stefani.
Hsieh Su-wei and Barbora Strýcová were the defending champions but chose not to participate.
Hsieh Su-wei and Barbora Strýcová were the two-time defending champions, but they chose not to participate.
Shuko Aoyama and Ena Shibahara defeated Hayley Carter and Luisa Stefani in the final, 6–2, 7–5, to win the women's doubles tennis title at the 2021 Miami Open. Aoyama and Shibahara's first WTA 1000 victory earned them their third title of the year and made them the first Japanese champions in Miami since Ai Sugiyama in 2008.
Nicole Melichar and Demi Schuurs defeated Marie Bouzková and Lucie Hradecká in the final, 6–2, 6–4, to win the doubles tennis title at the 2021 Charleston Open. It marked their third title together as a team.
Nicole Melichar and Demi Schuurs were the defending champions but Schuurs chose not to participate. Melichar played alongside Vivian Heisen, but they lost in the semifinals to Alexa Guarachi and Desirae Krawczyk.
Barbora Krejčíková and Kateřina Siniaková defeated Bethanie Mattek-Sands and Iga Świątek in the final, 6–4, 6–2, to win the women's doubles tennis title at the 2021 French Open. It was the pair's second French Open title and third major together. Krejčíková became the first woman to win both the singles and doubles tournaments at a Grand Slam since Serena Williams at the 2016 Wimbledon Championships, and the first to do so at the French Open since Mary Pierce in 2000, making her the seventh woman to accomplish the sweep in French Open history.
Defending champion Hsieh Su-wei and her partner, Elise Mertens, defeated Veronika Kudermetova and Elena Vesnina in the final, 3–6, 7–5, 9–7, to win the ladies' doubles tennis title at the 2021 Wimbledon Championships. The pair saved two championship points in the final en route to winning their first major together.
Chan Hao-ching and Latisha Chan were the defending champions from when the event was last held in 2019, but lost in the semifinals to Nicole Melichar and Demi Schuurs.
Nicole Melichar and Květa Peschke were the defending champions but Melichar chose not to participate. Peschke partnered alongside Ellen Perez but lost in the semifinals to Gabriela Dabrowski and Luisa Stefani.
Barbora Krejčíková and Kateřina Siniaková were the defending champions from when the tournament was last held in 2019, but withdrew before the tournament began.
Květa Peschke and Demi Schuurs were the defending champions, but chose to compete with different partners. Peschke partnered Ellen Perez, and Schuurs partnered Nicole Melichar. Both teams lost to Samantha Stosur and Zhang Shuai; Perez and Peschke did so in the second round, whilst Melichar and Schuurs lost in the quarterfinals.
Desirae Krawczyk and Joe Salisbury defeated Giuliana Olmos and Marcelo Arévalo in the final, 7–5, 6–2 to win the mixed doubles tennis title at the 2021 US Open. By winning the title, Krawczyk and Salisbury received their third and second major mixed doubles title, respectively. Their victory together made Krawczyk the first player to win three consecutive mixed doubles major trophies since Mahesh Bhupathi in 2005 and 2006, and the seventh player in the Open Era to win three mixed doubles titles in a single season. Salisbury became the first man to win both the men's doubles and mixed doubles titles at the US Open in the same year since Bob Bryan in 2010.
Hsieh Su-wei and Elise Mertens defeated Veronika Kudermetova and Elena Rybakina in the final, 7–6(7–1), 6–3, to win the women's doubles tennis title at the 2021 Indian Wells Masters. It was Hsieh's third title at the tournament and her 30th career doubles title overall. Mertens successfully defended her title to win for a second time after she first won the tournament in 2019 with Aryna Sabalenka, who chose not to defend her title.
| Grand Slam events | |
|---|---|
| WTA Premier Mandatory tournaments | |
| WTA Premier 5 tournaments | |
| WTA Premier tournaments | |
| WTA International tournaments | |
| Team events | |
 –Tournaments affected by the COVID-19 pandemic * – Tournaments were introduced due to cancellations caused by the COVID-19 pandemic | |