Kampong Speu (Khmer: ខេត្តកំពង់ស្ពឺ, „Starfruit Port“) is a province (khaet) of Cambodia. It borders the provinces of Pursat and Kompong Chhnang to the north, Kandal to the east, Takeo to the southeast, Kampot to the south and Koh Kong to the west. Its capital is Kompong Speu town.
Kampong Speu in Khmer means „starfruit port“ or „starfruit harbor.“ Kampong in Khmer translates as „port“ or „harbor.“ The word Kampong is shared in other Austronesian languages, the Malaysian and Indonesian, both meaning „village.“ Speu in the Khmer language means „starfruit.“
The province is subdivided into 8 districts.