The 2022–23 Turkish Airlines EuroLeague was the 23rd season of the modern era of the EuroLeague, and the 13th under the title sponsorship of Turkish Airlines. Including the competition's previous incarnation as the FIBA Europe Champions Cup, it was the 66th season of the premier basketball competition for European men's clubs.

The EuroLeague, known as the Turkish Airlines EuroLeague for sponsorship reasons, is a European men's professional basketball club competition. The league is widely recognised as the top-tier men's league in Europe. The league consists of 18 teams, of which 16 are given long-term licences and wild cards, making the league a semi-closed league. The league was first organized by FIBA in 1958, subsequently by ULEB in 2000 and then solely the Euroleague Basketball.