Ahmed III (Ottoman Turkish: احمد ثالث, Aḥmed-i sālis) (30 December 1673 – 1 July 1736) was Sultan of the Ottoman Empire and a son of Sultan Mehmed IV (r. 1648–1687). His mother was Gülnuş Sultan, originally named Evmania Voria, who was an ethnic Greek. He was born at Hacıoğlu Pazarcık, in Dobruja. He succeeded to the throne in 1703 on the abdication of his brother Mustafa II (1695–1703). Nevşehirli Damat İbrahim Pasha and the Sultan's daughter, Fatma Sultan (wife of the former) directed the government from 1718 to 1730, a period referred to as the Tulip Era.

The first days of Ahmed III's reign passed with efforts to appease the janissaries who were completely disciplined. However, he was not effective against the janissaries who made him sultan. Çorlulu Ali Pasha, who Ahmed brought to the Grand Vizier, tried to help him in administrative matters, made new arrangements for the treasury and Sultan. He supported Ahmed in his fight with his rivals.