Montagnard country of South Indochina

Pays Montagnard du Sud Indochinois Xứ Thượng Nam Đông Dương
Autonomous territory of Annam (1946–1948), the Provisional Central Government of Vietnam (1948–1949), and the State of Vietnam (1949–1950) within French Indochina.
1946–1950
Flag
Capital	Đà Lạt (1946–1948) Ban Mê Thuột (1948–1950)
• Type	Autonomous territory
Historical era	First Indochina War (Cold War)
• Autonomy granted	27 May 1946
• Absorbed into Bảo Đại's crown domains	15 April 1950
Subdivisions
• Type	Provinces, districts, communes
Preceded by Succeeded by Darlac Đồng Nai Thượng Kontum Lang Biang Pleiku Domain of the Crown
Today part of	Vietnam

The Montagnard country of South Indochina (French: Pays Montagnard du Sud Indochinois; Vietnamese: Xứ Thượng Nam Đông Dương), sometimes abbreviated as PMSI, was an autonomous territory of French Indochina, and an autonomous federation within the French Union, created in 1946 following the French reconquest of the Central Highlands from the Democratic Republic of Vietnam during the First Indochina War. The territory was supposed to be an autonomous homeland of the Montagnard people within French Indochina, but existed mainly to serve French colonial interests in the region.

The territory was absorbed into the Domain of the Crown, with the issue of Dụ số 6 in 1950, a collection of territories where Kinh people were a minority that was nominally directly controlled by Chief of State Bảo Đại.