The Elliot Mansion (now Elliot Hall or the Elliot Center) is a historic house at 229 Main Street in Keene, New Hampshire. Built about 1810, it was said to be the finest house in town at the time of its completion, and it remains a high quality example of Federal period architecture. The house was listed on the National Register of Historic Places in 1976. It now houses facilities of Keene State College.