Clarkson Office Building

Clarkson Office Building is a historic office building located at Potsdam in St. Lawrence County, New York. It was built in 1901 and is a two-story, three by three bay, square shaped stone structure in the Romanesque style. It is constructed of red Potsdam Sandstone and features a castellated roofline.

It was listed on the National Register of Historic Places in 2003.