Marumori (丸森町, Marumori-machi) is a town located in Miyagi Prefecture, Japan.

It was raised to town status on December 1, 1954, after merging with the neighboring villages of Kaneyama, Ōuchi, Ōhari, Kōya, Kosai, Tateyama and Hippo.

Marumori has a mayor-council form of government with a directly elected mayor and a unicameral town council of 14 members.

In terms of national politics, the town is part of Miyagi 3rd district of the lower house of the Diet of Japan.

AbukumaExpress - Abukuma Express Line Media related to Marumori, Miyagi at Wikimedia Commons