The Cummings' Guest House is a historic African-American summer boarding house at 110 Portland Avenue in Old Orchard Beach, Maine. Established in 1923, it was one of the only places in the community offering summer accommodations to African-Americans during the period of Jim Crow segregation. Prominent guests included Duke Ellington, Cab Calloway, Count Basie, and Lionel Hampton. The property, which reverted to completely private use by the Cummingses in 1993, was listed on the National Register of Historic Places in 2004.