| Date: | 24–29 January |
| Edition: | 1st |
| Surface: | Hard (indoor) |
| Location: | Ottignies-Louvain-la-Neuve, Belgium |
| Champs: |  David Goffin |
| Champd: | Romain Arneodo /  Sam Weissborn |
The 2023 BW Open was a professional tennis tournament played on hard courts. It was the first edition of the tournament which was part of the 2023 ATP Challenger Tour. It took place in Ottignies-Louvain-la-Neuve, Belgium between 24 and 29 January 2023.
| Country | Player | Rank1 | Seed | |
|---|---|---|---|---|
| Belgium | David Goffin | 50 | 1 | |
 France | Ugo Humbert | 106 | 3 | |
 Czech Republic | Tomáš Macháč | 110 | 4 | |
| Austria | Jurij Rodionov | 122 | 5 | |
 Sweden | Elias Ymer | 124 | 6 | |
| Borna Gojo | 125 | 7 | ||
| Yannick Hanfmann | 128 | 8 |
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 BW Open – Singles.
David Goffin def. Mikael Ymer 6–4, 6–1.See main article: 2023 BW Open – Doubles.
Sam Weissborn def. Roman Jebavý / Adam Pavlásek 6–4, 6–3.
