The President of the Member State holding the Chairmanship acts as Chairperson-in-Office. (and the functions of the Chairmanship-in-Office is exercised by the Ministry of Foreign Affairs of that State.)
During the Gabala Summit held in October 2025, the Kyrgyz Republic handed over the Chairmanship to the Republic of Azerbaijan until the next Summit to be held in 2026 in Türkiye.
Current Chairperson-in-Office of the Organization of Turkic States is H.E. Ilham Aliev, President of the Republic of Azerbaijan. https://president.az/az
