The 2019 Nur-Sultan Challenger was a professional tennis tournament played on indoor hard courts.

It was the first edition of the tournament which was part of the 2019 ATP Challenger Tour.

It took place in Nur-Sultan, Kazakhstan between 30 September and 6 October 2019.

The following players received wildcards into the singles main draw: The following player received entry into the singles main draw using a protected ranking: The following players received entry from the qualifying draw: The following player received entry as a lucky loser: