Maple Bay is an unincorporated community in Godfrey Township in central Polk County, Minnesota, United States.

[1] A community of second homes and cabins, it lies on the western end of Maple Lake, approximately six miles west of Erskine.

The nearby lake is a summer resort and playground for residents of Crookston, Grand Forks, North Dakota and other nearby communities, and offers excellent ice fishing.

The place name dates back to 1882, when Maple Bay Post Office was established in Markham's general store.

The Maple Lake dance hall and roller rink, constructed in 1913, was no longer in business at last report.