| Date: | 2–7 January |
| Edition: | 18th |
| Surface: | Hard |
| Location: | Nouméa, New Caledonia |
| Champs: |  Raúl Brancaccio |
| Champd: | Colin Sinclair /  Rubin Statham |
| Before Year: | 2020 |
| Before Name: | BNP Paribas de Nouvelle-Calédonie |
The 2023 Open Nouvelle-Calédonie was a professional tennis tournament played on hard courts. It was the 18th edition of the tournament which was part of the 2023 ATP Challenger Tour. It took place in Nouméa, New Caledonia between 2 and 7 January 2023.
| Country | Player | Rank1 | Seed | |
|---|---|---|---|---|
| Cristian Garín | 85 | 1 | ||
 France | Hugo Grenier | 141 | 2 | |
 Hungary | Zsombor Piros | 162 | 3 | |
 United Kingdom | Ryan Peniston | 167 | 4 | |
| France | Geoffrey Blancaneaux | 170 | 5 | |
| France | Benoît Paire | 179 | 6 | |
 Bosnia and Herzegovina | Damir Džumhur | 186 | 7 | |
| Italy | Riccardo Bonadio | 187 | 8 |
The following players received wildcards into the singles main draw:
Thomas Fancutt Victor Lopes
Toshihide MatsuiThe following players received entry from the qualifying draw:
See main article: 2023 Open Nouvelle-Calédonie – Singles.
Raúl Brancaccio def. Laurent Lokoli 4–6, 7–5, 6–2.See main article: 2023 Open Nouvelle-Calédonie – Doubles.
Rubin Statham def. Toshihide Matsui / Kaito Uesugi 6–4, 6–3.