Doğan Alemdar (born 29 October 2002) is a Turkish professional footballer who plays as a goalkeeper for Ligue 1 club Rennes.
[1][3] Alemdar started playing football for Kayserispor at the age of 10.
[1] On 12 March 2018, he signed his first professional contract with Kayserispor aged 15.
[1] He became the youngest captain of Kayserispor history when he made also his professional debut for the club in a Turkish Cup tie against Manisa FK on 19 December 2019, aged 17.
[5] Alemdar was signed by Ligue 2 club Troyes on loan for the 2023–24 season.