Islam in Christmas Island is the island's largest religion and is primarily practised by the island's ethnic Malay population; the island has no current indigenous population.
The Muslim population is estimated at 19% (2016) of an overall population of 2,205 (2016), by the CIA World Factbook.
The Australian Federation of Islamic Councils includes a council for each state, as well as Australian Capital Territory, Northern Territory, and Christmas Island.
The town of Katanning, Western Australia, has a large population of Christmas Island Muslims.
There is only one Islamic mosque in Christmas Island: