| Alauddin Johan Syah | |
|---|---|
 Le roi d'Achem, sur l'île de Sumatra au XVIIIème siècle. Between 1730 and 1750. | |
| Sulṭān of Acèh Darussalam | |
| Reign | 1735–1760 |
| Predecessor | Alauddin Ahmad Syah |
| Successor | Alauddin Mahmud Syah I |
| Born | Pocut Auk Banda Aceh, Aceh Sultanate |
| Died | 1760 Banda Aceh, Aceh Sultanate |
| Issue | Alauddin Mahmud Syah I |
| Dynasty | Bugis clan |
| Father | Alauddin Ahmad Syah |
| Religion | Islam |
Sultan Alauddin Johan Syah (died 1760) was the twenty-fourth sultan of Aceh in northern Sumatra. He represented the second generation of the Bugis dynasty of Aceh and ruled from 1735 to 1760.