List of the Main Opposition Leaders of Turkey

Main Opposition Leader
Ana Muhalefet Lideri
Logo of the largest opposition party
Incumbent Özgür Özel since 5 November 2023
Residence	No official residence
Appointer	Largest political party in the Grand National Assembly that is not in the cabinet
Term length	While leader of the largest political party in the Grand National Assembly that is not in the cabinet
Inaugural holder	Kâzım Karabekir (One-party period) Celâl Bayar (Multi-party period)
Formation	17 October 1924 (One-party period) 7 January 1946 (Multi-party period)

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This article lists the individuals to have served as Main Opposition Leader of Turkey, since the inception of the republican period in 1923. The Main Opposition Leader (Turkish: Ana Muhalefet Lideri) is the leader of the largest political party in the Grand National Assembly that is not in cabinet.

Except for two brief periods (1924–25 and 1930), there were no opposition leaders in the one-party period. Furthermore, there were no opposition leaders during the periods of military dictatorships in the multi-party period (1960–61 and 1980–83).^[1][2][3]