| 2025 Tampere Open | |
|---|---|
| Date | 21–27 July |
| Edition | 43rd |
| Surface | Clay |
| Location | Tampere, Finland |
| Champions | |
| Singles | |
 Nicolai Budkov Kjær | |
| Doubles | |
 Christoph Negritu /  Vladyslav Orlov | |
The 2025 Tampere Open was a professional tennis tournament played on clay courts. It was the 43rd edition of the tournament which was part of the 2025 ATP Challenger Tour. It took place in Tampere, Finland, between 21 and 27 July 2025.
| Country | Player | Rank1 | Seed |
|---|---|---|---|
 GBR | Jay Clarke | 199 | 1 |
 BEL | Gauthier Onclin | 200 | 2 |
 ESP | Daniel Rincón | 202 | 3 |
 KAZ | Dmitry Popko | 214 | 4 |
| NOR | Viktor Durasovic | 230 | 5 |
| BEL | Kimmer Coppejans | 237 | 6 |
 ITA | Federico Cinà | 243 | 7 |
 POR | Frederico Ferreira Silva | 250 | 8 |
The following players received wildcards into the singles main draw:
Vesa Ahti Oskari Paldanius Eero Vasa The following player received entry into the singles main draw through the Junior Accelerator programme:
The following player received entry into the singles main draw through the Next Gen Accelerator programme:
The following players received entry into the singles main draw as alternates:
The following players received entry from the qualifying draw:
Nicolai Budkov Kjær def. 
Sascha Gueymard Wayenburg 7–6(7–5), 6–7(2–7), 6–2. Christoph Negritu / Vladyslav Orlov def. 
Mats Hermans / Mick Veldheer 7–5, 6–1.
