Ahmet Necdet Sezer, Turkish judge and politician, 10th President of the Republic of Turkey

Ahmet Necdet Sezer is a Turkish statesman and judge who served as the tenth president of Turkey from 2000 to 2007. Previously, he was president of the Constitutional Court of Turkey from January 1998 to May 2000. The Grand National Assembly of Turkey elected Sezer as president in 2000 after Süleyman Demirel's seven-year term expired. He was succeeded by Abdullah Gül in 2007.

The president of Turkey, officially the president of the Republic of Türkiye, is the head of state and head of government of Turkey. The president directs the executive branch of the national government and is the commander-in-chief of the Turkish military. The president also heads the National Security Council.