| Date: | 17–23 July |
| Edition: | 41st |
| Location: | Tampere, Finland |
| Surface: | Clay |
| Champs: |  Sumit Nagal |
| Champd: |  Szymon Kielan / Piotr Matuszewski |
The 2023 Tampere Open was a professional tennis tournament played on clay courts. It was the 41st edition of the tournament which was part of the 2023 ATP Challenger Tour. It took place in Tampere, Finland, between 17 and 23 July 2023.
| Country | Player | Rank1 | Seed | |
|---|---|---|---|---|
 Hungary | Zsombor Piros | 113 | 1 | |
| Cristian Garín | 124 | 2 | ||
 Slovakia | Lukáš Klein | 152 | 3 | |
 Belgium | Kimmer Coppejans | 188 | 4 | |
 Czech Republic | Dalibor Svrčina | 193 | 5 | |
 Italy | Riccardo Bonadio | 194 | 6 | |
| India | Sumit Nagal | 225 | 7 | |
| Italy | Edoardo Lavagno | 230 | 8 |
The following players received wildcards into the singles main draw:
Patrick Kaukovalta Jiří VeselýThe following players received entry from the qualifying draw:
See main article: 2023 Tampere Open – Singles.
Sumit Nagal def. Dalibor Svrčina 6–4, 7–5.See main article: 2023 Tampere Open – Doubles.
Szymon Kielan / Piotr Matuszewski def. 
Vladyslav Orlov / 
Adam Taylor 6–4, 7–6(9–7).
