| Hissein Brahim Taha | |
| Native Name Lang: | ar |
| Office: | 12th Secretary General of the Organisation of Islamic Cooperation |
| Term Start: | 29 November 2020 |
| Predecessor: | Yousef Al-Othaimeen |
| Office1: | Minister of Foreign Affairs |
| Primeminister1: | Albert Pahimi Padacké |
| Term Start1: | 5 February 2017 |
| Term End1: | 24 December 2017 |
| Predecessor1: | Moussa Faki |
| Successor1: | Mahamat Zene Cherif |
| Office3: | Ambassador of Chad to Taiwan |
| Term Start3: | 2001 |
| Term End3: | 2006 |
| Predecessor3: | Helena Tchiouna |
| Successor3: | Position abolished |
| Office2: | Ambassador of Chad to France |
| Term Start2: | 2006 |
| Predecessor2: | Moukhtar Wawa Dahab |
| Birth Date: | 1 November 1951 |
| Birth Place: | Abéché, Chad |
| Children: | 6 |
| Alma Mater: | Institut national des langues et civilisations orientales |
Hissein Brahim Taha (ar|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.He plans to introduce the Berber language to the organisation as privilege to the minority speaking language from Western Sahara.
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.[3]