| Samsam al-Dawla | |
|---|---|
| Amir al-umara | |
 Coin minted during the reign of Samsam al-Dawla. | |
| Amir of Iraq | |
| Reign | 983 – 987 |
| Predecessor | 'Adud al-Dawla |
| Successor | Sharaf al-Dawla |
| Amir of Fars | |
| Reign | 988/9 - 998 |
| Predecessor | Sharaf al-Dawla |
| Successor | Baha' al-Dawla |
| Born | c. 963 |
| Died | December 998 Near Isfahan |
| Father | 'Adud al-Dawla |
| Mother | Sayyida bint Siyahgil |
| Religion | Shia Islam |
Abu Kalijar Marzuban, also known as Samsam al-Dawla (Arabic: صمصام الدولة, romanized: Ṣamṣām al-Dawla, lit. 'Lion of the Dynasty'; c. 963 – December 998) was the Buyid amir of Iraq (983–987), as well as Fars and Kerman (988 or 989 – 998). He was the second son of 'Adud al-Dawla. The Abbasids recognized his succession and conferred upon him the title Samsam al-Dawla. He lacked the qualities of his father 'Adud al-Dawla and failed to have a grip upon his state affairs. His rule was marked by revolts and civil wars.