Indochina, or the Indochinese Peninsula, is a region in Southeast Asia. It lies roughly east of India, south of China, culturally influenced by both - hence the name.

Indochina comprises the territory of the following countries:

In strict sense, only the former colonial French Indochina : Cambodia (formerly Kampuchea) Laos and Vietnam

In the wider sense, better described as Mainland Southeast Asia, it includes furthermore : Peninsular Malaysia (comprising the southern end of the Malay peninsula but none of the Malay islands) Myanmar (formerly Burma and part of British India until 1937) Thailand (formerly Siam)

The main religion in this region is Theravada or Hinayana Buddhism. Mahayana Buddhism is predominant in Vietnam, while Malaysia is a multi-religious nation, with Islam as the main religion, and Buddhist, Hindu, and Christian as major minorities.