| Date: | 27 February – 5 March |
| Edition: | 5th |
| Surface: | Hard (indoor) |
| Location: | Pau, France |
| Champs: |  Luca Van Assche |
| Champd: | Dan Added / Albano Olivetti |
The 2023 Teréga Open Pau–Pyrénées was a professional tennis tournament played on indoor hard courts. It was the fifth edition of the tournament which was part of the 2023 ATP Challenger Tour. It took place in Pau, France between 27 February and 5 March 2023.
| Country | Player | Rank1 | Seed | |
|---|---|---|---|---|
| France | Arthur Rinderknech | 72 | 1 | |
| France | Ugo Humbert | 85 | 2 | |
| Gijs Brouwer | 116 | 3 | ||
| France | Arthur Fils | 118 | 4 | |
 Italy | Raúl Brancaccio | 123 | 5 | |
| Italy | ||||
 Belgium | Zizou Bergs | 132 | 7 | |
 Austria | Jurij Rodionov | 134 | 8 | |
| Jan-Lennard Struff | 136 | 9 |
The following players received wildcards into the singles main draw:
The following players received entry into the singles main draw as alternates:
The following players received entry from the qualifying draw:
The following players received entry as lucky losers:
See main article: 2023 Teréga Open Pau–Pyrénées – Singles.
Luca Van Assche def. Ugo Humbert 7–6(7–5), 4–6, 7–6(8–6).See main article: 2023 Teréga Open Pau–Pyrénées – Doubles.
Dan Added / Albano Olivetti def. 
Julian Cash / Constantin Frantzen 3–6, 6–1, [10–8].
