# 2023 Engie Open de l'Isère – Singles

Katie Boulter was the defending champion but chose not to participate.
Océane Dodin won the title, defeating Simona Waltert in the final, 6–2, 7–5.

## Seeds

* Clara Burel (quarterfinals)
* Océane Dodin (champion)
* Simona Waltert (final)
* Elsa Jacquemot (first round)
* Oksana Selekhmeteva (semifinals)
* Chloé Paquet (first round, retired)
* Jessika Ponchet (semifinals)
* Irina Bara (second round)

## Draw
### Key

* Q = Qualifier
* WC = Wild card
* LL = Lucky loser
* Alt = Alternate
* SE = Special exempt
* PR = Protected ranking
* ITF = ITF entry
* JE = Junior exempt
* w/o = Walkover
* r = Retired
* d = Defaulted
* SR = Special ranking

### Finals

| Semifinals | Semifinals | Semifinals | Semifinals | Semifinals | Final | Final | Final | Final |
| 5 | Oksana Selekhmeteva | 3 | 1 | | | | | |
| 3 | Simona Waltert | 6 | 6 | | | | | |
| 3 | Simona Waltert | 6 | 6 | | 3 | Simona Waltert | 2 | 5 |
| | | | | | 2 | Océane Dodin | 6 | 7 |
| 7 | Jessika Ponchet | 4 | 6 | 2 | 2 | Océane Dodin | 6 | 7 |
| 2 | Océane Dodin | 6 | 4 | 6 | | | | |

### Top half

| First round | First round | First round | First round | First round | Second round | Second round | Second round | Second round | Second round | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Semifinals | Semifinals | Semifinals | Semifinals |
| 1 | C Burel | 6 | 7$^7$ | | | | | | | | | | | | | | | |
| | K Dmitruk | 4 | 6$^3$ | | 1 | C Burel | 7$^7$ | 1 | 6 | | | | | | | | | |
| | M Timofeeva | 6 | 6 | | | M Timofeeva | 6$^3$ | 6 | 2 | | | | | | | | | |
| WC | L Petretic | 2 | 1 | | | | | | | 1 | C Burel | 6 | 5 | 2 | | | | |
| | D Astakhova | 3 | 2 | | | | | | | 5 | O Selekhmeteva | 3 | 7 | 6 | | | | |
| SR | S Lansere | 6 | 6 | | SR | S Lansere | 7 | 4 | 5 | | | | | | | | | |
| | A Prisăcariu | 2 | 4 | | 5 | O Selekhmeteva | 5 | 6 | 7 | | | | | | | | | |
| 5 | O Selekhmeteva | 6 | 6 | | | | | | | | | | | | 5 | O Selekhmeteva | 3 | 1 |
| 3 | S Waltert | 6 | 4 | 6 | | | | | | | | | | | 3 | S Waltert | 6 | 6 |
| | M Kempen | 3 | 6 | 3 | 3 | S Waltert | 6 | 2 | 6 | | | | | | | | | |
| | S Sakellaridi | 3 | 3 | | Q | É Dartron | 4 | 6 | 4 | | | | | | | | | |
| Q | É Dartron | 6 | 6 | | | | | | | 3 | S Waltert | 6 | 7 | | | | | |
| WC | N Berecoechea | 1 | 3 | | | | | | | | K von Deichmann | 4 | 5 | | | | | |
| | K von Deichmann | 6 | 6 | | | K von Deichmann | 6 | 6 | | | | | | | | | | |
| Q | E Maloney | 7$^7$ | 4 | | Q | E Maloney | 0 | 2 | | | | | | | | | | |
| 6 | C Paquet | 6$^5$ | 2$^r$ | | | | | | | | | | | | | | | |

### Bottom half

| First round | First round | First round | First round | First round | Second round | Second round | Second round | Second round | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Semifinals | Semifinals | Semifinals | Semifinals | Semifinals |
| 7 | J Ponchet | 6 | 6 | | | | | | | | | | | | | | |
| Q | M Léonard | 3 | 0 | | 7 | J Ponchet | 6 | 6 | | | | | | | | | |
| | L Nguyen Tan | 1 | 2 | | Q | G Desperrier | 2 | 4 | | | | | | | | | |
| Q | G Desperrier | 6 | 6 | | | | | | 7 | J Ponchet | 6 | 6 | | | | | |
| WC | E Léné | 6 | 6 | | | | | | Q | M Rouvroy | 1 | 4 | | | | | |
| Q | A Laboutková | 2 | 2 | | WC | E Léné | 1 | 4 | | | | | | | | | |
| Q | M Rouvroy | 3 | 6 | 6 | Q | M Rouvroy | 6 | 6 | | | | | | | | | |
| 4 | E Jacquemot | 6 | 3 | 1 | | | | | | | | | 7 | J Ponchet | 4 | 6 | 2 |
| 8 | I Bara | 7$^7$ | 6 | | | | | | | | | | 2 | O Dodin | 6 | 4 | 6 |
| WC | A Monnot | 6$^2$ | 2 | | 8 | I Bara | 0 | 1 | | | | | | | | | |
| | Z Sönmez | 4 | 6 | 4 | | A Albié | 6 | 6 | | | | | | | | | |
| | A Albié | 6 | 4 | 6 | | | | | | A Albié | 2 | 1 | | | | | |
| | L Havlíčková | 6$^3$ | 4 | | | | | | 2 | O Dodin | 6 | 6 | | | | | |
| Q | G Gatto-Monticone | 7$^7$ | 6 | | Q | G Gatto-Monticone | 0 | 2 | | | | | | | | | |
| Q | K Kanev | 2 | 4 | | 2 | O Dodin | 6 | 6 | | | | | | | | | |
| 2 | O Dodin | 6 | 6 | | | | | | | | | | | | | | |