| Native Name: | الحمدانيون al-Hamdaniyyun |
| Conventional Long Name: | Hamdanid Dynasty |
| Common Name: | Hamdanids |
| Era: | Middle Ages |
| Government Type: | Hereditary monarchy |
| Year Start: | 890 |
| Year End: | 1004 |
| Event1: | Husayn ibn Hamdan establishes himself as leader of Al-Jazira for the Abbasids. |
| Date Event1: | 895 |
| Event2: | Sayf al-Dawla establishes himself in Aleppo after successfully countering the Ikhshidids of Egypt. |
| Date Event2: | 944 |
| P1: | Abbasid Caliphate |
| S1: | Uqaylid dynasty |
| S2: | Fatimid Caliphate |
| Image Map Caption: | Hamdanid territory in 955 during the rule of Sayf al-Dawla |
| Capital: | Mardin (892–895) Mosul (905–990) (in Iraq) Aleppo (944–1002) (in Syria) |
| Common Languages: | |
| Religion: | Shia Islam |
| Leader1: | Hamdan ibn Hamdun |
| Title Leader: | Emir |
The Hamdanid dynasty (Arabic: الحمدانيون|al-Ḥamdāniyyūn) was a Shia Muslim Arab dynasty of Northern Mesopotamia and Syria (890–1004). They descended from the ancient Banu Taghlib tribe of Mesopotamia and Arabia.
The Hamdanid dynasty was founded by Hamdan ibn Hamdun. By 892–893, he was in possession of Mardin, after fighting the Kharijites of the Jazira. In 895, Caliph al-Mutadid invaded and Hamdan fled Mardin.
Hamdan's son, Husayn, who was at Ardumusht, joined the caliph's forces. Hamdan later surrendered to the caliph and was imprisoned. In December 908, Husayn conspired to establish Ibn al-Mu'tazz as Caliph. Having failed, Husayn fled until he asked for mediation through his brother Ibrahim. Upon his return, he was made governor of Diyar Rabi'a. In 916, Husayn, due to a disagreement with vizier Ali b. Isa, revolted, was captured, imprisoned, and executed in 918.
Hamdan's other son, Abdallah, was made governor of Mosul in 905–906. He conducted campaigns against the Kurds in that region and in 913–914, was dismissed from his post and subsequently revolted. Abdallah submitted himself to Mu'nis, and with his pardon was made governor of Mosul in 914–915. During his brother Husayn's revolt, both he and his brother Ibrahim were temporarily imprisoned. By 919, Abdallah was commanding an army against Yusuf b. Abi l'Sadj, governor of Adharbaydjan and Armenia. During their rule the Hamdanids intermarried with Kurdish dignitaries.
The rule of Hassan Nasir al-Dawla (929–968), governor of Mosul and Diyar Bakr, was sufficiently tyrannical to cause him to be deposed by his own family.
His lineage still ruled in Mosul, a heavy defeat by the Buyids in 979 notwithstanding, until 990. After this, their area of control in northern Iraq was divided between the Uqaylids and the Marwanids.
Ali Sayf al-Dawla 'Sword of the State' ruled (945–967) northern Syria from Aleppo, and became the most important opponent of the Christian Byzantine Empire's re-expansion. His court was a centre of culture, thanks to its nurturing of Arabic literature, but it lost this status after the Byzantine conquest of Aleppo.
To stop the Byzantine advance, Aleppo was put under the suzerainty of the Fatimids in Egypt, but in 1003 the Fatimids deposed the Hamdanids.
Hamdanids in Al-Jazira
Hamdanids in Aleppo