Mohammed Haydar Zammar
| Mohammed Haydar Zammar محمد حيدر زمار | |
|---|---|
| Born | 1961 (age 63–64) Aleppo, Syria |
| Arrested | October 2001 Morocco Moroccan police |
| Citizenship | German |
| Detained at | Far' Falastin prison, Damascus, Syria |
| Alleged to be a member of | Formerly Al-Qaeda, now Islamic State |
| Status | Under custody of the YPG as of April 2018 |
Mohammed Haydar Zammar (Arabic: محمد حيدر زمار Muḥammad Ḥaydar Zammār) (born 1961) is a Syrian-German militant who served as an important al-Qaida recruiter, and is currently a member of the Islamic State. He claims to have recruited many of the organizers of the September 11 attacks. He was detained in Far'Falastin.