2023 Istanbul Challenger

The 2023 QNB Finansbank Istanbul Challenger 75. TED Open International Tennis Tournament was a professional tennis tournament played on hardcourts. It was the 37th edition of the tournament which was part of the 2023 ATP Challenger Tour. It took place in Istanbul, Turkey between 4 and 10 September 2023.^[1]

2023 Istanbul Challenger
Date	4–10 September
Edition	37th
Surface	Hard
Location	Istanbul, Turkey
Champions
Singles
Damir Džumhur
Doubles
Luke Johnson / Skander Mansouri

Singles main-draw entrants

Seeds

Country	Player	Rank1	Seed
KOR	Kwon Soon-woo	104	1
NED	Jesper de Jong	141	2
SVK	Lukáš Klein	155	3
CRO	Dino Prižmić	176	4
BEL	Gauthier Onclin	198	5
FRA	Harold Mayot	204	6
BIH	Damir Džumhur	211	7
SVK	Norbert Gombos	217	8

• ¹ Rankings are as of 28 August 2023.^[2]

Other entrants

The following players received wildcards into the singles main draw:

• Tuncay Duran
• Koray Kırcı
• Ergi Kırkın

The following players received entry from the qualifying draw:

• Blaise Bicknell
• Leo Borg
• Daniel Cukierman
• Martin Damm
• Marsel İlhan
• Yshai Oliel

Champions

Singles

Main article: 2023 Istanbul Challenger – Singles

• Damir Džumhur def. Lukáš Klein 7–6^(7–5), 6–3.

Doubles

Main article: 2023 Istanbul Challenger – Doubles

• Luke Johnson / Skander Mansouri def. Sander Arends / Aisam-ul-Haq Qureshi 7–6^(7–3), 6–3.