The 2019 Nottingham Open (also known as the Nature Valley Open for sponsorship purposes) was a professional tennis tournament played on outdoor grass courts. It was the 12th edition of the event for women and the 24th edition for men. It is classified as a WTA International tournament on the 2019 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 10 through 16 June 2019.[1]
| Country | Player | Rank1 | Seed | |
|---|---|---|---|---|
 United Kingdom | Dan Evans | 80 | 1 | |
 Australia | Bernard Tomic | 84 | 2 | |
| Ivo Karlović | 94 | 3 | ||
 Spain | Marcel Granollers | 107 | 4 | |
 Austria | Dennis Novak | 113 | 5 | |
| Yannick Maden | 114 | 6 | ||
 Poland | Kamil Majchrzak | 117 | 7 | |
 Canada | Peter Polansky | 123 | 8 | |
 Korea, Republic of | Kwon Soon-woo | 135 | 9 | |
| Austria | Sebastian Ofner | 140 | 10 | |
 India | Ramkumar Ramanathan | 143 | 11 | |
| Oscar Otte | 144 | 12 | ||
 Russian Federation | Evgeny Donskoy | 145 | 13 | |
 France | Antoine Hoang | 146 | 14 | |
 Sweden | Mikael Ymer | 148 | 15 | |
 Czech Republic | Lukáš Rosol | 149 | 16 |
The following players received wildcards into the main draw:
The following player received entry into the singles main draw as a special exempt:
The following player received entry into the singles main draw as an alternate:
The following players received entry from the qualifying draw:
| Country | Player | Rank1 | Seed | |
|---|---|---|---|---|
| France | Caroline Garcia | 22 | 1 | |
| Donna Vekić | 24 | 2 | ||
 Kazakhstan | ||||
| Maria Sakkari | 30 | 4 | ||
 Ukraine | ||||
| Australia | Ajla Tomljanović | 47 | 6 | |
 China | Zhang Shuai | 50 | 7 | |
| France | Kristina Mladenovic | 53 | 8 | |
| Tatjana Maria | 57 | 9 | ||
| Russian Federation | Evgeniya Rodina | 70 | 10 |
The following players received wildcards into the main draw:
The following player received entry using a protected ranking into the main draw:
The following players received entry from the qualifying draw:
The following players received entry as lucky losers:
Ashleigh Barty → replaced by Dalila Jakupović Katie Boulter → replaced by Astra Sharma
Mihaela Buzărnescu → replaced by Sara Sorribes Tormo Vitalia Diatchenko → replaced by 
Bernarda Pera Daria Gavrilova → replaced by Jennifer Brady
Camila Giorgi → replaced by Monica Niculescu Johanna Konta → replaced by Heather Watson Anastasia Potapova → replaced by 
Ivana Jorović Yulia Putintseva → replaced by Chloé Paquet Barbora Strýcová → replaced by Harriet Dart Markéta Vondroušová → replaced by Shelby Rogers Dayana Yastremska → replaced by Ankita Raina
Magdaléna Rybáriková (respiratory infection)| Country | Player | Country | Player | Rank1 | Seed | |
|---|---|---|---|---|---|---|
| Canada | Gabriela Dabrowski | China | Xu Yifan | 22 | 1 | |
| Poland | Alicja Rosolska | China | Yang Zhaoxuan | 55 | 2 | |
| Darija Jurak | Katarina Srebotnik | 67 | 3 | |||
 Japan | Makoto Ninomiya | Czech Republic | Renata Voráčová | 107 | 4 |
The following pairs received wildcards into the doubles main draw:
See main article: 2019 Nottingham Open – Men's singles.
Dan Evans def. Evgeny Donskoy 7–6(7–3), 6–3.See main article: 2019 Nottingham Open – Women's singles.
Caroline Garcia def. Donna Vekić, 2–6, 7–6(7–4), 7–6(7–4)See main article: 2019 Nottingham Open – Men's doubles.
Santiago González / 
Aisam-ul-Haq Qureshi def. Gong Maoxin / Zhang Ze 4–6, 7–6(7–5), [10–5].See main article: 2019 Nottingham Open – Women's doubles.
Desirae Krawczyk / Giuliana Olmos def. Ellen Perez / Arina Rodionova, 7–6(7–5), 7–5