| Date: | 27 March – 2 April |
| Edition: | 5th |
| Surface: | Hard (indoor) |
| Location: | Lille, France |
| Champs: |  Otto Virtanen |
| Champd: |  Max Purcell / Jason Taylor |
The 2023 Play In Challenger 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 Lille, France, between 27 March and 2 April 2023.
| Country | Player | Rank1 | Seed | |
|---|---|---|---|---|
| Australia | Max Purcell | 99 | 1 | |
 Austria | Jurij Rodionov | 131 | 2 | |
 Slovakia | Norbert Gombos | 133 | 3 | |
| Finland | Otto Virtanen | 139 | 4 | |
 France | Hugo Grenier | 146 | 5 | |
| France | Benoît Paire | 170 | 6 | |
 Czech Republic | Zdeněk Kolář | 174 | 7 | |
| France | Antoine Escoffier | 180 | 8 |
The following players received wildcards into the singles main draw:
The following players received entry into the singles main draw as special exempts:
The following players received entry into the singles main draw as alternates:
The following players received entry from the qualifying draw:
The following player received entry as a lucky loser:
See main article: 2023 Play In Challenger – Singles.
Otto Virtanen def. Max Purcell 6–7(3–7), 6–4, 6–2.See main article: 2023 Play In Challenger – Doubles.
Max Purcell / Jason Taylor def. 
Dustin Brown / 
Aisam-ul-Haq Qureshi 7–6(7–3), 6–4.
