Merrill-Poor House, Colonial estate in Andover, United States.

The Merrill-Poor House is a 2+1⁄2-story wood-frame house on a granite foundation with a hip roof and central chimney, built 1788–1792 by Ezekiel Merrill. Its five-bay center-entry facade has a Queen Anne portico. A great hall added in 1896 has Gothic woodwork and a 30-foot open lodge space.

A Revolutionary War veteran built the house between 1788 and 1792 in recognition of his military service. The building was expanded in later years, reflecting the family's growth and changing needs.

This house was home to individuals whose careers shaped American finance and transportation industries in significant ways. The rooms today reflect how an established family lived and worked during the 19th century.

The house sits northeast of downtown Andover along Maine State Route 120 and preserves its original architectural character. Visitors should expect uneven floors and narrow stairs typical of homes from this period.

The great hall of 1896, built on the site of the old barn, is a two-story open lodge space reaching 30 feet (9.1 m) at its apex, framed in Gothic woodwork. It is the largest addition made to the house during Henry Varnum Poor's transformation of the homestead.