| 2025 Koblenz Open | |
|---|---|
| Date | 27 January – 2 February |
| Edition | 7th |
| Surface | Hard (indoor) |
| Location | Koblenz, Germany |
| Champions | |
| Singles | |
 Ugo Blanchet | |
| Doubles | |
 Jakub Paul /  David Pel | |
The 2025 Koblenz Open was a professional tennis tournament played on indoor hardcourts. It was the seventh edition of the tournament which was part of the 2025 ATP Challenger Tour. It took place in Koblenz, Germany from 27 January to 2 February 2025.
| Country | Player | Rank1 | Seed |
|---|---|---|---|
 GER | Henri Squire | 178 | 1 |
| NED | |||
| FRA | Antoine Escoffier | 205 | 3 |
| FRA | Matteo Martineau | 215 | 4 |
| FRA | Ugo Blanchet | 227 | 5 |
 ITA | Gianluca Mager | 228 | 6 |
| ITA | Federico Arnaboldi | 233 | 7 |
| ITA |
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:
Florian Broska Mika Brunold Luca Nardi Christoph Negritu 
Vadym Ursu Max WiskandtThe following players received entry as lucky losers:
Dimitar Kuzmanov Ryan Nijboer Jakub Paul Ugo Blanchet def. Luca Nardi 6–3, 3–6, 7–6(7–5). Jakub Paul / David Pel def. Geoffrey Blancaneaux / 
Joshua Paris via walkover.