2023 Challenger Biel/Bienne

The 2023 Challenger Biel/Bienne was a professional tennis tournament played on indoor hard courts. It was the third edition of the tournament which was part of the 2023 ATP Challenger Tour. It took place in Biel/Bienne, Switzerland between 20 and 26 March 2023.

Seeds

 * 1 Rankings are as of 6 March 2023.

Other entrants
The following players received wildcards into the singles main draw:
 * Mika Brunold
 * Dylan Dietrich
 * Jakub Paul

The following player received entry into the singles main draw using a protected ranking:
 * 🇺🇸 Thai-Son Kwiatkowski

The following players received entry from the qualifying draw:
 * 🇷🇴 Marius Copil
 * 🇮🇱 Daniel Cukierman
 * 🇮🇹 Enrico Dalla Valle
 * 🇮🇹 Francesco Forti
 * Kirill Kivattsev
 * 🇦🇹 Neil Oberleitner

The following player received entry as a lucky loser:
 * 🇩🇪 Max Hans Rehberg

Singles

 * 🇦🇹 Jurij Rodionov def. 🇬🇧 Liam Broady 6–3, 0–0 ret.

Doubles

 * 🇩🇪 Constantin Frantzen / 🇩🇪 Hendrik Jebens def. 🇷🇴 Victor Vlad Cornea / Franko Škugor 6–2, 6–4.