- Funan states (68 - 627 AD)
- Chenla kingdom (550 - 802 AD)
- Khmer Empire (802 - 1431)
- Post-Angkor period (1431-1863)
- French Protectorate of Cambodia (1863-1953)
- Japanese occupation of Cambodia (1941-1945)
- Cambodia kingdom (1953-1970)
- Cambodian Civil War (1968-1975)
- Military coup d'état (1970)
- Cambodian campaign (1970)
- Khmer Republic (1970-1975)
- Democratic Kampuchea (1975-1982)
- Cambodian genocide (1975-1979)
- Cambodian-Vietnamese War (1978-1989)
- People's Republic of Kampuchea (1979-1989)
- United Nations Transitional Authority in Cambodia (1992-1993)
- Kingdom of Cambodia (1993 - now)
(This post includes any nation or civilization that occupied at least a portion of Cambodia at some point. Unless specified otherwise, the dates correspond to when a nation or civilization existed, but do not necessarily correspond to occupation of Cambodia.)
