Old Stone Shop is a historic commercial building located at Lyme in Jefferson County, New York.

It was built in 1838–1839 and is a 1+1⁄2-story, four-by-two-bay gable-ended building with foundation and walls of coursed quarry-dressed limestone, trimmed in dressed limestone.

It was built as a double blacksmith shop and exhibits the finest commercial masonry architecture in the town of Lyme.

[2] It was listed on the National Register of Historic Places in 1990.

This article about a historic property or district in Jefferson County, New York, that is listed on the National Register of Historic Places, is a stub.