2023-09-04 İstanbul (c)

The 2023 İstanbul Challenger (known as İstanbul Challenger Ted Open for sponsorship reasons) was a men's tennis tournament played on outdoor hard courts in İstanbul, Turkey, that was part of the Challenger 75 series of tournaments on the 2023 ATP Challenger Tour. It was the 37th edition of the İstanbul Challenger and was held 4–10 September.