Morotsuka is a village in Higashiusuki District, Miyazaki Prefecture, Japan. As of 1 October 2023, the village has an estimated population of 1360 in 601 households, and a population density of 9.8 persons per km². The total area of the village is 187.56 square kilometres (72.42 sq mi).

Miyazaki Prefecture is a prefecture of Japan located on the island of Kyūshū. Miyazaki Prefecture has a population of 1,073,054 as of 1 June 2019 and has a geographic area of 7,735 km2. Miyazaki Prefecture borders Ōita Prefecture to the north, Kumamoto Prefecture to the northwest, and Kagoshima Prefecture to the southwest.