| Mu'ayyad al-Dawla | |||||
|---|---|---|---|---|---|
 Coin of Mu'ayyad al-Dawla | |||||
| Amir of Gorgan | |||||
| Reign | 981–983 | ||||
| Predecessor | Post Created | ||||
| Successor | Fakhr al-Dawla | ||||
| Amir of Tabaristan | |||||
| Reign | 980–983 | ||||
| Predecessor | Post Created | ||||
| Successor | Fakhr al-Dawla | ||||
| Amir of Rey (Jibal) | |||||
| Reign | 977–983 | ||||
| Predecessor | Fakhr al-Dawla | ||||
| Successor | Fakhr al-Dawla | ||||
| Amir of Hamadan | |||||
| Reign | 976–983 | ||||
| Predecessor | Rukn al-Dawla | ||||
| Successor | Fakhr al-Dawla | ||||
| Born | 7 March 942 | ||||
| Died | 983 | ||||
| |||||
| Father | Rukn al-Dawla | ||||
| Religion | Shia Islam | ||||
Abu Mansur Buya (Persian: ابو منصور بویه; died 983), better known by his honorific title of Mu'ayyad al-Dawla (Arabic: مویدالدوله, lit. 'Helper of the State') was the Buyid amir of Hamadan (976–983), Jibal (977–983), Tabaristan (980–983), and Gorgan (981–983). He was the third son of Rukn al-Dawla.