Ali al-Haidari (died January 4, 2005; Arabic: علي الحيدري, Alī al-Ḥaidarī) was the governor of the Baghdad Governorate in Iraq. Al-Haidari had narrowly escaped being killed in an assassination attempt in early September 2004 in Baghdad, but he was assassinated by gunmen during a second attempt in Baghdad in early 2005. A group led by Abu Musab al-Zarqawi claimed responsibility, and six suspects were arrested in November 2005.