Kanacea (pronounced [kanaˈðea]) is a volcanic island with seven peaks in Fiji's Lauarchipelago. It is situated at 17.25° South and 179.171° East, 15 km west of Vanua Balavu. Covering an area of 13 square km, it has a maximum elevation of 259 m.
The island features a coconut plantation and many streams, and is circled by great beaches and fringing reefs with a boat opening and a large lagoon on the northeastern side. Plantation buildings and a school remain.
Kanacea is privately owned. Its main economic activity is centred on the coconut plantation.