| Alauddin Mansur Syah | |
|---|---|
 | |
| Sultan of Aceh Sultanate | |
| Reign | 5 October 1579 – 1585/1586 |
| Predecessor | Zainul Abidin |
| Successor | Sultan Buyung |
| Born | Negeri Perak |
| Died | 1585/1586 Banda Aceh, Aceh Sultanate, Ottoman Empire (now Indonesia) |
| Spouse | Abdul Khana |
| House | Perak |
| Father | Mansur Shah I of Perak |
Sultan Alauddin Mansur Syah (died 1585 or 1586) was the eighth Sultan of Aceh in northern Sumatra. He ruled Aceh from 1579 to 1585 or 1586 and was known as a pious Muslim ruler with cultural interests. His reign also saw some military expansion on the Malay Peninsula. With his death ended a 65-year long period of warfare between Aceh and the Portuguese.