Maruseppu (丸瀬布町, Maruseppu-chō) was a town located in Monbetsu District, Abashiri Subprefecture (now Okhotsk Subprefecture), Hokkaido, Japan.

The town's name comes from a word in the Ainu language which means "a wide area where three rivers gather".

As of April 1, 2005, the town had an estimated population of 2,032, with 1,042 households.

On October 1, 2005, Maruseppu, along with the town of Ikutahara, and the village of Shirataki (all from Monbetsu District), was merged into the expanded town of Engaru.

This Hokkaidō location article is a stub.