The 2025 Delhi Open was a professional tennis tournament played on outdoor hard courts.

It was the fifth edition of the tournament.

It was part of the 2025 ATP Challenger Tour.

It took place in New Delhi, India from 10 to 16 February 2025.

The following players received wildcards into the singles main draw: The following player received entry into the singles main draw as a special exempt: The following player received entry into the singles main draw as an alternate: The following players received entry from the qualifying draw: The following player received entry as a lucky loser: