Said Ali bin Said Omar (died 10 February 1916) was the Sultan of Grande Comore.

On 9 April 1908, France declared the Comoros a single territory (Mayotte and Dependencies) and attached it to the colony of Madagascar.

On 25 July 1912, the Protectorate was abolished and Ngazidja, along with the three other islands, was annexed by France and the entire archipelago was constituted as a province of Madagascar.

Said Ali bin Said Omar went to court, where the French judges awarded him a compensation for his losses.

His son, Crown Prince Said Hussein joined the French Foreign Legion on 4 August 1916 during the First World War.