Marrakai is a locality in the Northern Territory of Australia located about 76 kilometres (47 mi) east of the territorial capital of Darwin. The locality consists of land bounded in part to the west by the Adelaide River, in part to the north by the coastline of Van Diemen Gulf and in part to the east by the Mary River. The locality was named after the Marrakai pastoral station whose name is considered to be an amalgamation of a local Aboriginal word "kie", meaning river, and a corruption of the English word "Mary", usually used as a woman's first name. Its boundaries and name were gazetted on 4 April 2007.