| Grand Est Open 88 | |
| Location: | Contrexéville, France |
| Venue: | Tennis Club de Contrexéville |
| Category: | WTA 125 |
| Surface: | Clay |
| Draw: | 32S/12Q/8D |
| Prize Money: | $115,000 |
| Completed Event: | 2024 |
| Women's Singles: |  Lucia Bronzetti |
| Women's Doubles: |  Oksana Kalashnikova / Iryna Shymanovich |
| Website: | Official website |
The Grand Est Open 88 (previously known as the Open 88 Contrexéville and the Lorraine Open 88) is a tournament for professional female tennis players on outdoor clay courts. The event is classified as a WTA 125 tournament and has been held in Contrexéville, France, since 2007. The tournament was held as an ITF event until 2021.
| Year | Champion | Runner-up | Score | |
|---|---|---|---|---|
| Lucia Bronzetti | 6–4, 6–7(4–7), 7–5 | |||
| Arantxa Rus | 6–3, 6–3 | |||
| Sara Errani | 6–4, 1–6, 7–6(7–4) | |||
| ⬆️ WTA 125 event ⬆️ | ||||
 Anhelina Kalinina | 6–2, 6–2 | |||
| 2020 | ||||
| Katarina Zavatska | 6–4, 6–4 | |||
| Stefanie Vögele | 6–4, 6–2 | |||
 Johanna Larsson | 6–1, 6–4 | |||
 Pauline Parmentier | 6–1, 6–1 | |||
 Alexandra Dulgheru | 6–3, 1–6, 7–5 | |||
| Irina-Camelia Begu | 6–3, 6–4 | |||
| Timea Bacsinszky | 6–1, 6–1 | |||
| Aravane Rezaï | 6–3, 2–6, 6–3 | |||
| Iryna Brémond | 6–4, 6–7(1–7), 6–2 | |||
| 2010 |  Jelena Dokić | 4–6, 6–3, 6–1 | ||
| 2009 |  Ekaterina Bychkova | 6–4, 6–4 | ||
| 2008 | Ioana Raluca Olaru | 6–4, 6–2 | ||
| 2007 | Andrea Petkovic | 6–2, 6–0 | ||
| Year | Champions | Runners-up | Score | |
|---|---|---|---|---|
| Oksana Kalashnikova (3) Iryna Shymanovich | 5–7, 6–3, [10–7] | |||
 Cristina Bucșa Alena Fomina-Klotz | 4–6, 6–3, [10–7] | |||
 Ulrikke Eikeri (2)  Tereza Mihalíková | 7–6(10–8), 6–2 | |||
| ⬆️ WTA 125 event ⬆️ | ||||
 Anna Danilina Ulrikke Eikeri | 6–0, 1–6, [10–4] | |||
| 2020 | ||||
| Georgina García Pérez Oksana Kalashnikova (2) | 6–3, 6–3 | |||
 An-Sophie Mestach  Zheng Saisai | 3–6, 6–2, [10–7] | |||
| Anastasiya Komardina Elitsa Kostova | 6–3, 6–4 | |||
| Cindy Burger Laura Pous Tió | 6–1, 6–3 | |||
Oksana Kalashnikova  Danka Kovinić | 2–6, 6–3, [10–6] | |||
| Alexandra Panova Laura Thorpe | 6–3, 4–0, ret. | |||
 Vanesa Furlanetto Amandine Hesse | 7–6(7–3), 6–4 | |||
Yuliya Beygelzimer  Renata Voráčová | 6–1, 6–1 | |||
| Valentyna Ivakhnenko Kateryna Kozlova | 2–6, 7–5, [12–10] | |||
| 2010 | Nina Bratchikova Ekaterina Ivanova | 4–6, 6–4, [10–3] | ||
| 2009 |  Yvonne Meusburger Kathrin Wörle | 6–2, 6–2 | ||
| 2008 | Stéphanie Foretz Aurélie Védy | 6–4, 6–4 | ||
| 2007 | Renata Voráčová Barbora Záhlavová-Strýcová | 6–2, 6–2 | ||