Engaru is a town in the Okhotsk subprefecture of Hokkaido, Japan. The name comes from the Ainu place name Inkar-us-i, meaning a lookout point. On October 1, 2005, the towns of Ikutahara and Maruseppu, and the village of Shirataki, all from Monbetsu District merged into the expanded town of Engaru. As of September 2016, the town has an estimated population of 20,757. The total area is 1,332.32 square kilometres, making it the fifth largest municipality in Hokkaido.