| Singles | |
|---|---|
| 2019 Engie Open de Seine-et-Marne | |
| Champion |  Vitalia Diatchenko |
| Runner-up |  Robin Anderson |
| Score | 6–2, 6–3 |
Anna Blinkova was the defending champion, but chose not to participate.
Vitalia Diatchenko won the title, defeating Robin Anderson in the final, 6–2, 6–3. [1]
Vitalia Diatchenko (champion)
Tamara Korpatsch (first round)
Tereza Smitková (semifinals)
Paula Badosa Gibert (second round)
Harriet Dart (semifinals)
Viktoriya Tomova (quarterfinals)
Elena Rybakina (second round) Georgina García Pérez (second round)| Semifinals | Final | ||||||||||||
| 1 | Vitalia Diatchenko | 78 | 6 | ||||||||||
| 3 | Tereza Smitková | 66 | 3 | ||||||||||
| 1 | Vitalia Diatchenko | 6 | 6 | ||||||||||
| Robin Anderson | 2 | 3 | |||||||||||
| Robin Anderson | 6 | 6 | |||||||||||
| 5 | Harriet Dart | 2 | 3 | ||||||||||
| First round | Second round | Quarterfinals | Semifinals | ||||||||||||||||||||||||
| 1 | V Diatchenko | 4 | 6 | 6 | |||||||||||||||||||||||
| Q |  J Gervais | 6 | 4 | 3 | 1 | V Diatchenko | 6 | 6 | |||||||||||||||||||
 L Kerkhove | 77 | 4 | 64 | A Lottner | 1 | 3 | |||||||||||||||||||||
| A Lottner | 62 | 6 | 77 | 1 | V Diatchenko | 6 | 64 | 6 | |||||||||||||||||||
 M Zanevska | 6 | 77 | M Zanevska | 0 | 77 | 3 | |||||||||||||||||||||
| WC | A Lim | 1 | 63 | M Zanevska | 6 | 2 | 6 | ||||||||||||||||||||
| Q | A Albié | 3 | 1 | 7 | E Rybakina | 4 | 6 | 4 | |||||||||||||||||||
| 7 | E Rybakina | 6 | 6 | 1 | V Diatchenko | 78 | 6 | ||||||||||||||||||||
| 3 | T Smitková | 6 | 6 | 3 | T Smitková | 66 | 3 | ||||||||||||||||||||
| Q |  U Eikeri | 4 | 0 | 3 | T Smitková | 6 | 3 | 78 | |||||||||||||||||||
| A Hesse | 2 | 3 | J Ponchet | 4 | 6 | 66 | |||||||||||||||||||||
| J Ponchet | 6 | 6 | 3 | T Smitková | 6 | 6 | |||||||||||||||||||||
| LL | M Manasse | 62 | 77 | 78 | 6 | V Tomova | 3 | 2 | |||||||||||||||||||
| WC | M Léonard | 77 | 63 | 66 | LL | M Manasse | 3 | 4 | |||||||||||||||||||
 A Cadanțu | 2 | 6 | 2 | 6 | V Tomova | 6 | 6 | ||||||||||||||||||||
| 6 | V Tomova | 6 | 4 | 6 | |||||||||||||||||||||||
| First round | Second round | Quarterfinals | Semifinals | ||||||||||||||||||||||||
| 8 | G García Pérez | 6 | 6 | ||||||||||||||||||||||||
| I Shinikova | 4 | 4 | 8 | G García Pérez | 6 | 3 | 3 | ||||||||||||||||||||
| O Doroshina | 4 | 3 | M Georges | 2 | 6 | 6 | |||||||||||||||||||||
| M Georges | 6 | 6 | M Georges | ||||||||||||||||||||||||
| R Anderson | 6 | 7 | R Anderson | w/o | |||||||||||||||||||||||
 P Özgen | 3 | 5 | R Anderson | 4 | 6 | 6 | |||||||||||||||||||||
 R Šramková | 64 | 3 | 4 | P Badosa Gibert | 6 | 1 | 4 | ||||||||||||||||||||
| 4 | P Badosa Gibert | 77 | 6 | R Anderson | 6 | 6 | |||||||||||||||||||||
| 5 | H Dart | 6 | 4 | 6 | 5 | H Dart | 2 | 3 | |||||||||||||||||||
| G Minnen | 4 | 6 | 2 | 5 | H Dart | 6 | 2 | 77 | |||||||||||||||||||
| Q | C Bucșa | 6 | 6 | Q | C Bucșa | 2 | 6 | 60 | |||||||||||||||||||
 Y In-Albon | 4 | 4 | 5 | H Dart | 3 | 6 | 6 | ||||||||||||||||||||
| WC | S Reix | 6 | 5 | 2 | Q | L-I Paar | 6 | 1 | 4 | ||||||||||||||||||
| Q |  C Ferrando | 4 | 7 | 6 | Q | C Ferrando | 6 | 2 | 4 | ||||||||||||||||||
| Q | L-I Paar | 6 | 6 | Q | L-I Paar | 4 | 6 | 6 | |||||||||||||||||||
| 2 | T Korpatsch | 2 | 0 | ||||||||||||||||||||||||
1st-seeded German pair Julia Görges and Anna-Lena Grönefeld won in the final 6–4, 6–4, against Vitalia Diatchenko and Tatiana Poutchek.
Sara Errani and Roberta Vinci were the defending champions but lost in the final to Nuria Llagostera Vives and Arantxa Parra Santonja, 3–6, 6–4, [10–5].
Alexandra Panova and Tatiana Poutchek were the defending champions, but Poutchek decided not to participate.
Panova partnered with Akgul Amanmuradova, but were eliminated in the semifinals by Eleni Daniilidou and Vitalia Diatchenko.
Daniilidou and Diatchenko later defeated Lyudmyla Kichenok and Nadiya Kichenok in the final, 6–4, 6–3.
Elena Baltacha was the defending champion, but chose to participate at the 2012 Birmingham Classic instead.
Ashleigh Barty won the title, defeating Tatjana Malek in the final 6–1, 6–1.
Eleni Daniilidou and Vitalia Diatchenko were the defending champions, but decided not to defend their title together. Daniilidou played with Eva Birnerová, but lost in the first round to Lyudmyla Kichenok and Nadiya Kichenok.
Diatchenko played alongside Akgul Amanmuradova, losing in the semifinals to Paula Kania and Polina Pekhova.
They eventually won the title Anna Chakvetadze and Vesna Dolonc retired in the final after losing the first set 2–6.
Lyudmyla Kichenok and Nadiia Kichenok were the defending champions, but lost in the semifinals to fourth seeds Vitalia Diatchenko and Margarita Gasparyan.
Simona Halep was the defending champion, but she chose not to participate this year.
Alison Van Uytvanck was the defending champion, but chose to participate at the 2014 Open GDF Suez de Limoges instead.
This was the first edition of the tournament since 2008.
Dejana Radanović was the defending champion, but lost in the second round to Ivana Jorović.
Julia Görges was the defending champion, but chose to compete in Luxembourg instead.
Maia Lumsden was the defending champion, but lost to Yanina Wickmayer in the quarterfinals.
Sabina Sharipova was the defending champion, but lost in the first round to Jana Čepelová.
Alison Riske was the defending champion. Riske successfully defended the title, by beating 2017 champion Magdaléna Rybáriková 6–7(5–7), 6–2, 6–2 in the final.
Daria Kasatkina was the defending champion, but lost in the first round to Dayana Yastremska.
Luksika Kumkhum was the defending champion, but chose not to participate.
Kiki Bertens was the defending champion and successfully defended her title, defeating Elena Rybakina in the final, 6–1, 6–3. This would be Bertens' final WTA Tour singles title before her retirement in July 2021.
Petra Martić was the defending champion, but chose to compete at the 2021 Western & Southern Open instead.
Jeļena Ostapenko was the defending champion, having won the previous edition in 2019, but lost to Clara Tauson in the final, 3–6, 6–4, 4–6.
Cristina Bucșa was the defending champion but withdrew from the tournament.