United States Post Office (Fort Plain, New York)

US Post Office-Fort Plain is a historic post office building located at Fort Plain in Montgomery County, New York, United States. It was built in 1931, and is one of a number of post offices in New York State designed by the Office of the Supervising Architect of the Treasury Department under James A. Wetmore. It is a two-story, symmetrical brick building with a one-story rear wing in the Colonial Revival style. It features a shallow projecting frontispiece framed by four brick pilasters and a pair of Grecian style lamps with glass globes.

It was listed on the National Register of Historic Places in 1989. It is located in the Fort Plain Historic District.