Southeast Asia or Southeastern Asia is a subregion of Asia, consisting of the countries that are geographically south of China, east of India, west of New Guinea and north of Australia.^{[citation needed]} The region lies on the intersection of geological plates, with heavy seismic and volcanic activity. Southeast Asia consists of two geographic regions: Mainland Southeast Asia, also known as Indochina, comprising Cambodia, Laos, Myanmar (Burma), Thailand, Vietnam and Peninsular Malaysia, and Maritime Southeast Asia, comprising Brunei, East Malaysia, East Timor, Indonesia, Philippines, Christmas Island, and Singapore.

The major religions are Islam and Buddhism, followed by Christianity. However, a wide variety of religions are found throughout the region, including many Hindu and animist-influenced practices.