Fenerbahce said in a statement to Turkey's Public Disclosure Platform (KAP) that they had appointed 65-year-old Kartal on a one-year contract.
Kartal, who spent a decade at Fenerbahce during his playing career, previously coached the club in 2014/15, then on an interim basis in 2021/22 before returning for a full campaign in 2023/24. He was an assistant manager at Fenerbahce during the last two times the club won the Super Lig.
Fenerbahce have finished second in the Turkish top-flight in the last five seasons straight, with their Istanbul rivals Galatasaray winning the title four times in a row.
