| 2026 Chennai Open Challenger | |
|---|---|
| Date | 9–15 February |
| Edition | 6th |
| Surface | Hard |
| Location | Chennai, India |
| 2025 Champions | |
| Singles | |
 Kyrian Jacquet | |
| Doubles | |
 Shintaro Mochizuki / Kaito Uesugi | |
The 2026 Chennai Open was a professional tennis tournament played on hard courts. It was the sixth edition of the tournament which was part of the 2026 ATP Challenger Tour. It took place in Chennai, India between 9 and 15 February 2026.
| Country | Player | Rank1 | Seed |
|---|---|---|---|
 GBR | Jay Clarke | 186 | 1 |
 ARG | Federico Agustín Gómez | 197 | 2 |
| GBR | Oliver Crawford | 213 | 3 |
| Ilia Simakin | 214 | 4 | |
| JPN | Rio Noguchi | 241 | 5 |
 POR | Frederico Ferreira Silva | 258 | 6 |
| FRA | Florent Bax | 272 | 7 |
 IND | Sumit Nagal | 281 | 8 |
The following players received wildcards into the singles main draw:
Sidharth Rawat Digvijaypratap Singh Manish SureshkumarThe following players received entry from the qualifying draw:
S D Prajwal Dev Ishaque Eqbal Aryan Lakshmanan
Mitsuki Wei Kang Leong Nitin Kumar Sinha Aditya Vishal Balsekar
vs. 