List of flags of French Indochina

The following is a list of flags of French Indochina from 18 February 1859 to 9 March 1945.^[1]^[2]

Date	Use	Description
17 October 1887 to 9 March 1945	State flag and civil ensign	A tricolour flag featuring three vertical bands coloured blue (hoist side), white, and red (2:3).
1867 – 9 March 1945	Flag of the governor colony	A vertical tricolour of blue, white, and red on swallow tail blue ensign (1:2). Influences:
1923–1945	Civil and naval ensign of French Indochina	A vertical tricolour of blue, white and red on swallow tail yellow ensign. (proportions 1:2). Influences:

Date	Use	Description
1862 – 9 March 1945	War flag	A vertical tricolour of blue, white, and red (proportions 1:1). Influences:
1923 – 9 March 1945	Flag of Tirailleurs indochinois	French flag canton on a yellow field (1:1). Influences:
1867 – 9 March 1945	Flag of Gendarmerie	Influences:

Flag	Date	Use	Description
	1858–1885	Diplomatic flag of Dainamese empire^[3]	Yellow field with gold border (2:3).
	1885–1890	Provisional flag of Dainamese empire	National name centered on the yellow field (2:3). Influences:
	1923 – 9 March 1945	Protectorate flag of Annam, Tonkin and Kouang-Tchéou-Wan	French flag canton on a yellow field (2:3). Influences:
Imperial standards
Flag	Date	Use	Description
	1885–1890	Nguyễn dynasty by Cảnh Tôn	Standard of Dainamese emperor, beside, used as the [provisional] national flag. Influences:
	1890–1920	Nguyễn dynasty from Thành Thái to Hoằng Tôn	A yellow field with a single red stripe. The flag of dragon and star, originally designed by Emperor Thành Thái.^[4]^[5]^[6] Highly same as the Spanish flag. Influences:
	1920 – 8 May 1945	Nguyễn dynasty from Hoằng Tôn to Bảo Đại	The flag of dragon and star, used as the [official] national flag in 1945. Influences:
Personal standards of emperors
Flag	Date	Use	Description
	1802–1945	[Triangle] Personal standard of emperors of Nguyễn dynasty	The flag of yellow and dragon (黃龍旗 / Hoàng-long kì) or emperor (天子旗 / Thiên-tử kì). Flag ratio is 1:2.
	1922–1945	[Rectangle] Personal standard of emperors of Nguyễn dynasty (Hoằng Tôn and Bảo Đại)	Flag ratio is 2:3. Influences:
	1802–1945	Imperial pennon of Nguyễn dynasty	Flag ratio is 5:3.

Date	Use	Description
1713–1947	National and royal flag of Kingdom of Champasak
1707–1893	National and royal flag of Kingdom of Luang Phrabang
1887–1945	Protectorate flag of Kingdom of Laos	Influences:
1887–1975	Royal standard of the Kingdom of Laos	Influences:

Flag	Date	Use	Description
	1863–1948	Protectorate flag from Norodom to Sihanouk	Similar flag to the present flag, but instead of 2 blue bands above and bottom, it was a dark blue banner and a small red banner inside.
	1863–1993	Royal and personal standard of the King	Red flag with a dark blue rectangle inside, with elements from the Royal Arms of Cambodia in gold.

Union flags