2021 Nottingham Open
The 2021 Nottingham Open was a professional tennis tournament played on outdoor grass courts. It was the 13th edition of the event for women and the 25th edition for men. It was classified as a WTA 250 on the 2021 WTA Tour for the women, and as an ATP Challenger Tour event for the men. The event took place at the Nottingham Tennis Centre in Nottingham, United Kingdom from 6 through 13 June 2021.
Champions
Men's singles
- Frances Tiafoe def. Denis Kudla 6–1, 6–3.
Women's singles
- Johanna Konta def. Zhang Shuai 6–2, 6–1
Men's doubles
- Matt Reid / Ken Skupski def. Matthew Ebden / John-Patrick Smith 4–6, 7–5, .
Women's doubles
- Lyudmyla Kichenok / Makoto Ninomiya def. Caroline Dolehide / Storm Sanders, 6–4, 6–7,
ATP singles main-draw entrants
Seeds
- 1 Rankings are as of 31 May 2021.
Other entrants
The following players received entry from the qualifying draw:
- Marius Copil
- Matthew Ebden
- Borna Gojo
- Aleksandar Vukic
WTA singles main-draw entrants
Seeds
- 1 Rankings are as of 31 May 2021.
Other entrants
The following players received entry from the qualifying draw:
- Sarah Beth Grey
- Kateryna Kozlova
- Tara Moore
- Lesley Pattinama Kerkhove
- Ankita Raina
- Eden Silva
- CoCo Vandeweghe
- Katie Volynets
;Before the tournament
- Paula Badosa → replaced by Kurumi Nara
- Belinda Bencic → replaced by Caty McNally
- Danielle Collins → replaced by Marina Melnikova
- Misaki Doi → replaced by Kristie Ahn
- Camila Giorgi → replaced by Martina Di Giuseppe
- Polona Hercog → replaced by Georgina García Pérez
- Hsieh Su-wei → replaced by Arina Rodionova
- Marta Kostyuk → replaced by Wang Yafan
- Ann Li → replaced by Viktoriya Tomova
- Magda Linette → replaced by Camila Osorio
- Jessica Pegula → replaced by Wang Xiyu
- Kristýna Plíšková → replaced by Maddison Inglis
- Yulia Putintseva → replaced by Harriet Dart
- Shelby Rogers → replaced by Lizette Cabrera
- Elena Rybakina → replaced by Océane Dodin
- Clara Tauson → replaced by Zarina Diyas
- Ajla Tomljanović → replaced by Wang Xinyu
- Venus Williams → replaced by Giulia Gatto-Monticone
- Wang Qiang → replaced by Anastasia Gasanova
- Zheng Saisai → replaced by Leonie Küng
Retirements
- Kristie Ahn
WTA doubles main-draw entrants
Seeds
- 1 Rankings are as of 31 May 2021.
Other entrants
- Katie Boulter / Jodie Burrage
- Naomi Broady / Harriet Dart
- Christina McHale / CoCo Vandeweghe
- Marie Bouzková / Alicja Rosolska
Withdrawals
- Lauren Davis / Caty McNally → replaced by Marie Bouzková / Alicja Rosolska
- Sharon Fichman / Giuliana Olmos → replaced by Elixane Lechemia / Ingrid Neel
- Vivian Heisen / Květa Peschke → replaced by Tara Moore / Eden Silva
- Dalila Jakupović / Yana Sizikova → replaced by Sarah Beth Grey / Emily Webley-Smith
- Ellen Perez / Danielle Collins → replaced by Naiktha Bains / Samantha Murray Sharan
- Xu Yifan / Zhang Shuai → replaced by Ellen Perez / Zhang Shuai
- Kaitlyn Christian / Nao Hibino
- Johanna Konta / Donna Vekić