This list describes the evolution of Cambodian flags, as well as other flags used within Cambodia and Governmental agencies.

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State

National

Flag	Duration	Usage	Description
	1948–1970 1993–present	Flag of the Kingdom of Cambodia	Three horizontal bands of blue, red and blue and a depiction of Angkor Wat in white with black outlining.[1]

Ceremonial

Flag	Duration	Usage	Description
	1948–1970 1993–present	Ceremonial flag of Cambodia	Three vertical bands of blue, red and blue and a depiction of Angkor Wat in white with black outlining.[2]

Government

Royal Standard

Flag	Duration	Usage	Description
	1863–1970	Flag of the King of Cambodia	A blue field surrounded by a red band with elements of the Royal arms of Cambodia in gold.[5]
	1993–present	Flag of the King of Cambodia	A blue field with the emblem of the Royal arms of Cambodia in gold.[6]

Historical flags

Flag	Duration	Usage	Description
	?–1863	Flag of the Khmer Empire	A yellow pennant with green fringe. The claim that this flag existed is dubious and questioned.[7]
	1863–1940	Flag of the French protectorate of Cambodia	A red field surrounded by a blue band with a depiction of the Royal Palace in white.[8][failed verification]
	1940–1948	Flag of the French protectorate of Cambodia	A red field surrounded by a blue band with a depiction of Angkor Wat in white.[8]
	1942–1945	Flag of the Japanese occupation of Cambodia	Red flag with white-outlined square followed by 4 small full white squares in each angle and another in the center. The claim that this flag existed is dubious and questioned.[9]
	1948–1970	Flag of the French protectorate of Cambodia and the Kingdom of Cambodia	Three horizontal bands of blue, red and blue and a depiction of Angkor Wat in white with either black or red outlining.[10]
	1970–1975	Flag of the Khmer Republic	A blue field with a red canton with a depiction of Angkor Wat in white with either black or red outlining and three stars in the upper fly.[11]
	1975–1979	Flag of Democratic Kampuchea	A red field with a simplified depiction of Angkor Wat in yellow.[12]
	1979–1989	Flag of the People's Republic of Kampuchea	A red field with a simplified depiction of Angkor Wat in yellow, this time five towers instead of three.[13]
	1989–1993	Flag of the State of Cambodia	Two horizontal bands of red and blue with either the simplified depiction or a new five tower dipiction of Angkor Wat in yellow.[14]
	1992–1993	Flag of the United Nations Transitional Authority in Cambodia	A United Nations blue field with a map of Cambodia in white and the Khmer word for Cambodia in blue.[15]
	1993–present	Flag of the Kingdom of Cambodia	Three horizontal bands of blue, red and blue and a depiction of Angkor Wat in white with black outlining.[1][16]