Omar Ali Saifuddin II
| Omar Ali Saifuddin II عمر علي سيف الدين٢ | |
|---|---|
Illustration of Omar Ali Saifuddin | |
| Sultan of Brunei | |
| Reign | 1828–1852 |
| Predecessor | Muhammad Alam |
| Successor | Abdul Momin |
| Died | 18 November 1852 |
| Burial | Royal Mausoleum, Bandar Seri Begawan, Brunei |
| Spouse | Tuan Zaidah |
| Issue | List
|
| House | Bolkiah |
| Father | Muhammad Jamalul Alam I |
| Mother | Raja Isteri Noralam |
| Religion | Islam |
| Signature | |
.svg){kind=link}
Omar Ali Saifuddin II (died 18 November 1852) was the 23rd Sultan of Brunei from 1828 until his death in 1852. During his reign, Western powers such as the United Kingdom and the United States visited the country. His reign saw the British adventurer James Brooke becoming the White Rajah of Sarawak.