Fatu Huku, also known as Fatu Uku, is a small island in the Marquesas Islands, approximately 30 kilometres (19 mi) north of Hiva Oa. Fatu Huku is less than 2 kilometres (1.2 mi) long and 1 kilometre (0.62 mi) wide and has an area of about 1.3 square kilometres (0.50 sq mi)
