The prime minister of Cambodia is the head of government of Cambodia. The prime minister is also the chairman of the Cabinet and leads the executive branch of the Royal Government of Cambodia. The prime minister is a member of parliament, and is appointed by the monarch for a term of five years. Since 1945, 37 individuals have served as prime minister; 33 as official prime ministers, and 4 in acting capacities. The current prime minister since 2023 is Hun Manet.

Cambodia, officially the Kingdom of Cambodia, is a country in Southeast Asia on the Indochinese Peninsula, spanning an area of 181,035 square kilometres, bordered by Thailand to the northwest, Laos to the north, Vietnam to the east, and the Gulf of Thailand to the southwest. The capital and most populous city is Phnom Penh.