| 2025 Chennai Open Challenger | |
|---|---|
| Date | 3–9 February |
| Edition | 5th |
| Surface | Hard |
| Location | Chennai, India |
| Champions | |
| Singles | |
 Kyrian Jacquet | |
| Doubles | |
 Shintaro Mochizuki / Kaito Uesugi | |
The 2025 Chennai Open Challenger was a professional tennis tournament played on hard courts. It was the fifth edition of the tournament which was part of the 2025 ATP Challenger Tour. It took place in Chennai, India between 3 and 9 February 2025.
| Country | Player | Rank1 | Seed |
|---|---|---|---|
 GBR | Billy Harris | 129 | 1 |
 RSA | Lloyd Harris | 142 | 2 |
 CRO | Duje Ajduković | 158 | 3 |
 CAN | Alexis Galarneau | 176 | 4 |
| JPN | Shintaro Mochizuki | 180 | 5 |
| JPN | Sho Shimabukuro | 191 | 6 |
 KAZ | Timofey Skatov | 200 | 7 |
 HUN | Zsombor Piros | 213 | 8 |
The following players received wildcards into the singles main draw:
The following players received entry from the qualifying draw:
Egor Agafonov 
Hynek Bartoň
Kimmer Coppejans 
Yurii Dzhavakian Eric Vanshelboim Maxim ZhukovThe following player received entry as a lucky loser:
Kyrian Jacquet def. 
Elias Ymer 7–6(7–1), 6–4. Shintaro Mochizuki / Kaito Uesugi def. 
Saketh Myneni / Ramkumar Ramanathan 6–4, 6–4.