Sezai Temelli (born 1963) is a Turkish politician, and former chairman of the Peoples' Democratic Party (HDP) in Turkey.

He later became a lecturer in political science and public policy, specialising in finance.

[2] Temelli is a founding member of the Peoples' Democratic Party (HDP).

[3] During the HDP 3rd ordinary congress held on 11 February 2018, he was elected chairman of the HDP alongside Pervin Buldan, who was elected chairwoman.

He lost his seat in the snap November 2015 general election.