Perry is a city in Ralls County, Missouri, United States. The population was 666 at the 2000 census. It is part of the Hannibal Micropolitan Statistical Area.
Perry is located at 39°25′42″N 91°40′16″W / 39.42833°N 91.67111°W / 39.42833; -91.67111 (39.428413, -91.671021).
According to the United States Census Bureau, the city has a total area of 1.3 square miles (3.3 km²), of which, 1.2 square miles (3.2 km²) of it is land and 0.04 square miles (0.1 km²) of it (2.38%) is water.