| 2026 Challenger La Manche | |
|---|---|
| Date | 9–15 March |
| Edition | 33rd |
| Surface | Hard (indoor) |
| Location | Cherbourg-en-Cotentin, France |
| 2025 Champions | |
| Singles | |
 Pierre-Hugues Herbert | |
| Doubles | |
 Oleg Prihodko / Vitaliy Sachko | |
The 2026 Challenger La Manche was a professional tennis tournament played on indoor hard courts. It was the 33rd edition of the tournament which was part of the 2026 ATP Challenger Tour. It took place in Cherbourg, France between 9 and 15 March 2026.
| Country | Player | Rank1 | Seed |
|---|---|---|---|
 NOR | Nicolai Budkov Kjær | 150 | 1 |
| FRA | Pierre-Hugues Herbert | 157 | 2 |
 JPN | |||
 EST | Daniil Glinka | 176 | 4 |
 AUT | Jurij Rodionov | 177 | 5 |
| FRA | Clément Chidekh | 187 | 6 |
| FRA | Clément Tabur | 190 | 7 |
 CRO | Borna Gojo | 194 | 8 |
The following players received wildcards into the singles main draw:
Thomas Faurel Sascha Gueymard Wayenburg Laurent Lokoli The following player received entry into the singles main draw as an alternate:
Raphael PerotThe following players received entry from the qualifying draw:
Patrick Brady Antoine Ghibaudo Maxime Janvier Lucas Poullain
Filippo Romano 
Niels Visker The following player received entry as a lucky loser:
vs. / vs. / 