The Malesso Japanese Rice Mill is (despite its name) a historic World War II-era storage building in Merizo, Guam.

It is a single-story concrete structure with two rooms, located on a small parcel in a residential area south of Guam Highway 4 off Barcinas Road.

It was completed (according to an inscription on its south wall) on December 24, 1943, by conscripted Chamorro labor working for the occupying Japanese authorities.

It was built as part of a project by the Japanese to improve rice production in the area during the later period of the occupation.

This article about a property in Guam on the National Register of Historic Places is a stub.