| Birth Date: | 7 June 1884 |
| Death Date: | 20 December 1918 (aged 34) |
| Death Place: | Paris, France[1] |
| Father: | Hamoud bin Mohammed Al-Said |
| Reign: | 20 July 1902–9 December 1911 |
| Succession: | Sultan of Zanzibar |
| Predecessor: | Hamoud bin Mohammed Al-Said |
| Successor: | Sir Khalifa bin Harub Al-Said |
Sayyid Ali bin Hamud al-Busaidi (7 June 1884 – 20 December 1918; Arabic: علي بن حمود البوسعيد), also known as Ali II, was the eighth Sultan of Zanzibar from 1902 to 1911.[1]
Hamud was proclaimed Sultan of Zanzibar on 20 July 1902, following the death of his father, the seventh Sultan, two days earlier. There was a regency until he attained majority.
He served only a few years as sultan because of illness. On 9 December 1911 he abdicated in favour of his brother-in-law Khalifa bin Harub Al-Busaid.[1]
During his reign slavery in Zanzibar was fully abolished with the abolition of concubinage in 1909.[2]