Rothsay is a city in Otter Tail and Wilkin counties in the State of Minnesota.

[3] One of Rothsay's major tourist attractions is the large prairie chicken statue near the northwest outskirts of the town.

The Otter Tail County portion of Rothsay is part of the Fergus Falls Micropolitan Statistical Area, while the Wilkin County portion is part of the Wahpeton, ND—MN Micropolitan Statistical Area.

[6] Rothsay contains one property listed on the National Register of Historic Places, the 1903 J.

[7] According to the United States Census Bureau, the city has a total area of 0.88 square miles (2.28 km2), all land.

The racial makeup of the city was 98.8% White, 0.8% Native American, and 0.4% Asian.

28.4% of all households were made up of individuals, and 11.4% had someone living alone who was 65 years of age or older.