Grande Comore (French pronunciation: [ɡʁand kɔmɔʁ]; Swahili: Ngazidja[2]) is an island in Comoros off the coast of Africa.

The island is made up of two shield volcanoes, with Mount Karthala being the country's highest point at 2,361 m (7,746 ft) above sea level.

For several centuries, Grande Comore was divided into a number of sultanates, including Bambao, Itsandra, Mitsamihuli, Mbajini, Hambuu, Washili, Hamahame, Mbwankuu, Mbude and Domba.

The Boeing 767-260ER crash-landed in the Indian Ocean near Grande Comore after running out of fuel, killing 125 out of the 175 people on board, including 3 of the hijackers.

He remained in his post until the July 2007 elections, at which point Mohamed Abdoulwahab won the island's presidency.