Hissein Brahim Taha (Arabic: حسين إبراهيم طه) is a Chadian politician and diplomat who is the 12th and current Secretary General of the Organisation of Islamic Cooperation.

He briefly served in the government of Chad as Minister of Foreign Affairs in 2017.

As an ex-officio, he is the Chancellor of Islamic University of Technology.

[1]The French government used him as a point to monitor Algerian and Lebanese dissidents living in France.

Taha was appointed to the government as Minister of Foreign Affairs on 5 February 2017, succeeding Moussa Faki, who had been elected as Chairperson of the Commission of the African Union.