# 2023 Open Nouvelle-Calédonie – Singles

J. J. Wolf was the defending champion but chose not to defend his title.
Raúl Brancaccio won the title after defeating Laurent Lokoli 4–6, 7–5, 6–2 in the final.

## Seeds

* Cristian Garín (semifinals)
* Hugo Grenier (second round)
* Zsombor Piros (second round)
* Ryan Peniston (semifinals, withdrew)
* Geoffrey Blancaneaux (second round)
* Benoît Paire (quarterfinals)
* Damir Džumhur (quarterfinals)
* Riccardo Bonadio (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 |
| 1 | Cristian Garín | 6 | 4 | 3 | | | | |
| | Raúl Brancaccio | 1 | 6 | 6 | | | | |
| | Raúl Brancaccio | 1 | 6 | 6 | Raúl Brancaccio | 4 | 7 | 6 |
| | | | | | Laurent Lokoli | 6 | 5 | 2 |
| 4 | Ryan Peniston | | | | Laurent Lokoli | 6 | 5 | 2 |
| | Laurent Lokoli | w/o | | | | | | |

### 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 | Semifinals |
| 1 | C Garín | 6 | 6 | | | | | | | | | | | | | | | | |
| Q | Ja Delaney | 4 | 2 | | 1 | C Garín | 6 | 6 | | | | | | | | | | | |
| | S-c Hong | 4 | 6 | 3 | WC | T Fancutt | 3 | 3 | | | | | | | | | | | |
| WC | T Fancutt | 6 | 3 | 6 | | | | | | 1 | C Garín | 7 | 7 | | | | | | |
| | F Díaz Acosta | 6 | 6 | | | | | | | | F Díaz Acosta | 5 | 5 | | | | | | |
| Q | B Walkin | 3 | 4 | | | F Díaz Acosta | 6 | 7$^7$ | | | | | | | | | | | |
| WC | T Matsui | 3 | 3 | | 8 | R Bonadio | 3 | 6$^4$ | | | | | | | | | | | |
| 8 | R Bonadio | 6 | 6 | | | | | | | | | | | | 1 | C Garín | 6 | 4 | 3 |
| 3 | Z Piros | 6 | 6 | | | | | | | | | | | | | R Brancaccio | 1 | 6 | 6 |
| Q | B Mott | 4 | 2 | | 3 | Z Piros | 2 | 1 | | | | | | | | | | | |
| Q | C Puttergill | 0 | 3 | | | R Brancaccio | 6 | 6 | | | | | | | | | | | |
| | R Brancaccio | 6 | 6 | | | | | | | | R Brancaccio | 5 | 6 | 6 | | | | | |
| | E Escobedo | 6$^2$ | 6 | 4 | | | | | | 6 | B Paire | 7 | 0 | 3 | | | | | |
| Q | B Ellis | 7$^7$ | 2 | 6 | Q | B Ellis | 6 | 1 | 3 | | | | | | | | | | |
| WC | Victor Lopes | 1 | 3 | | 6 | B Paire | 3 | 6 | 6 | | | | | | | | | | |
| 6 | B Paire | 6 | 6 | | | | | | | | | | | | | | | | |

### Bottom 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 |
| 7 | D Džumhur | 6 | 6 | | | | | | | | | | | | | | |
| Q | Jeremy Jin | 3 | 3 | | 7 | D Džumhur | 6 | 6 | | | | | | | | | |
| | M Chazal | 6 | 6 | | | M Chazal | 1 | 3 | | | | | | | | | |
| | R Marcora | 3 | 3 | | | | | | | 7 | D Džumhur | 2 | 4 | | | | |
| | C Sinclair | 7 | 6 | | | | | | | 4 | R Peniston | 6 | 6 | | | | |
| | A Rai | 5 | 4 | | | C Sinclair | 6 | 4 | 3 | | | | | | | | |
| | K Uchida | 7$^9$ | 4 | 2 | 4 | R Peniston | 4 | 6 | 6 | | | | | | | | |
| 4 | R Peniston | 6$^7$ | 6 | 6 | | | | | | | | | | | 4 | R Peniston | |
| 5 | G Blancaneaux | 2 | 6 | 6 | | | | | | | | | | | | L Lokoli | w/o |
| | T Barrios Vera | 6 | 3 | 2 | 5 | G Blancaneaux | 6$^6$ | 6 | 4 | | | | | | | | |
| | R Statham | 6 | 6 | | | R Statham | 7$^8$ | 4 | 6 | | | | | | | | |
| | GA Olivieri | 3 | 4 | | | | | | | | R Statham | 7$^7$ | 3 | 2 | | | |
| | L Lokoli | 6 | 1 | 6 | | | | | | | L Lokoli | 6$^5$ | 6 | 6 | | | |
| | N Serdarušić | 4 | 6 | 0 | | L Lokoli | 4 | 6 | 6 | | | | | | | | |
| | S Mansouri | 6 | 3 | 2 | 2 | H Grenier | 6 | 3 | 0 | | | | | | | | |
| 2 | H Grenier | 4 | 6 | 6 | | | | | | | | | | | | | |