| Date: | 30 October–5 November 2023 |
| Edition: | 19th |
| Surface: | Hard / Indoor |
| Location: | Nantes, France |
| Category: | ITF Women's World Tennis Tour |
| Prize Money: | $60,000 |
| Champs: |  Océane Dodin |
| Champd: |  Ali Collins / Yuriko Miyazaki |
| Main Name: | Open Nantes Atlantique |
The 2023 Engie Open Nantes Atlantique was a professional tennis tournament played on indoor hard courts. It was the nineteenth edition of the tournament which was part of the 2023 ITF Women's World Tennis Tour. It took place in Nantes, France between 30 October and 5 November 2023.[1]
See main article: 2023 Engie Open Nantes Atlantique – Singles.
Océane Dodin def. 
Gabriela Knutson, 6–7(2–7), 6–3, 6–2See main article: 2023 Engie Open Nantes Atlantique – Doubles.
Ali Collins / Yuriko Miyazaki def. Emily Appleton / Isabelle Haverlag, 7–6(7–4), 6–2| Country | Player | Rank1 | Seed | |
|---|---|---|---|---|
| France | Océane Dodin | 110 | 1 | |
 Japan | ||||
| France | Léolia Jeanjean | 135 | 3 | |
| Polina Kudermetova | 147 | 4 | ||
| France | Jessika Ponchet | 159 | 5 | |
 Turkey | Zeynep Sönmez | 163 | 6 | |
| Simona Waltert | 167 | 7 | ||
| France | Elsa Jacquemot | 176 | 8 | |
| Czech Republic | Gabriela Knutson | 179 | 9 |
The following players received wildcards into the singles main draw:
Émeline Dartron Amandine Hesse Tiphanie Lemaître Mallaurie NoëlThe following player received entry as a junior exempt:
The following players received entry from the qualifying draw:
Emily Appleton Nahia Berecoechea Manon Léonard Diana Martynov Chloé Noël
Veronika Podrez
Tina Nadine SmithThe following player received entry as a lucky loser:
Matilda Mutavdzic