The former Alexander Classical School, today Alexander Town Hall, is located on Buffalo Street in Alexander, New York, United States. It is a three-story cobblestone building erected in the 1830s. It has a number of distinctions among cobblestone buildings, many of which are located in the region of New York south of Lake Ontario where the cobblestones used were sourced. It is one of the few to reach three stories high, and one of the few originally designed for educational purposes. It is the only one anywhere in North America currently used as a public building. The upper floor serves as a local history museum.