Ahmed Deedat, South African writer and public speaker (d. 2005)
Ahmed Husein Deedat (Gujarati: અહમદ હુસેન દીદત; Urdu: احمد حسین دیدات Arabic: احمد حسين ديدات), also known as Ahmed Deedat (1 July 1918 – 8 August 2005), was a self-taught Muslim thinker, author, and orator on Comparative Religion from South Africa. He was best known as a Muslim missionary, who held numerous inter-religious public debates with evangelical Christians, as well as video lectures on Islam, Christianity, and the Bible.

Deedat established the IPCI, an international Islamic missionary organisation, and wrote several widely distributed booklets on Islam and Christianity. He was awarded the King Faisal International Prize in 1986 for his fifty years of missionary work. He wrote and lectured in English.