Kadavu Province is a province in Fiji. It is in the Eastern Division. It has Kadavu Island, Ono Island, Galoa Island, Dravuni Island, Matanuku Island, Buliya Island, Nagigia Island, and a few other islands.
Kadavu has a total land area of 478 square kilometers. About 11,000 people lived there in 2017. There are 9 districts.
Kadavu is home to the second-largest living organism on Earth, the Great Astrolabe Reef.