The Asa Gillett House is a historic house at 202 South Main Street in West Hartford, Connecticut. It is a 2-1/2 story wood frame structure, five bays wide, with a large central chimney. The main entrance, centered on the front facade, is flanked by sidelight windows and pilasters, and topped by an entablature. The house was probably built in the mid-18th century by Asa Gillett, grandson of one of West Hartford's early proprietors. It is one of the town's few remaining 18th-century houses. The house was listed on the National Register of Historic Places on September 10, 1986.