Terry-Ketcham Inn is a historic inn and tavern located at Center Moriches in Suffolk County, New York. It was built about 1693, expanded about 1710 and 1790, and is a two story, nine by two bay frame structure with a rear wing and gable roof. The original structure was built as a two by three bay, single story timber frame cottage. In about 1710 a three by two bay timber frame half-house was built to the north of the original structure.