2023 Astana Open

The 2023 Astana Open was a professional men's tennis tournament to be held on indoor hard courts. It was the fourth edition of the Astana Open and part of the ATP Tour 250 Series of the 2023 ATP Tour.

Champions

Singles

Adrian Mannarino def. Sebastian Korda, 4–6, 6–3, 6–2
Doubles
Nathaniel Lammons / Jackson Withrow def. Mate Pavić / John Peers, 7–6, 7–6
Singles main draw entrants

Seeds

Rankings are as of 18 September 2023.
Other entrants

The following players received wildcards into the singles main draw:

The following players received entry from the qualifying draw:

Egor Gerasimov
Alibek Kachmazov
Jurij Rodionov
Sho Shimabukuro
Withdrawals
Borna Ćorić → replaced by Bernabé Zapata Miralles
Doubles main draw entrants

Seeds

Rankings are as of 18 September 2023
Other entrants

The following pairs received wildcards into the doubles main draw:

Alexander Bublik / Daniil Golubev
Egor Gerasimov / Mikhail Kukushkin
Withdrawals
Marcelo Demoliner / Matwé Middelkoop → replaced by Ariel Behar / Adam Pavlásek