The Henry Barnard House is a historic house and National Historic Landmark at 118 Main Street in Hartford, Connecticut, United States. It was the lifelong home of educator Henry Barnard (1811-1900), an education reformer who was instrumental (along with Horace Mann) in the development of the American public school system. Barnard established the statewide education systems of both Connecticut and Rhode Island, which served as models for the development of such infrastructure in other states. The house is now owned by a religious charity, which operates a homeless shelter on the premises.