Charles Sumner Post #25, Grand Army of the Republic is a historic fraternal lodge building located in Chestertown, Kent County, Maryland. Named after Charles Sumner, it was constructed as a meeting hall about 1908 and is a two-story gable-front frame building, built on brick piers, with a rectangular floor plan. It is located in the Scotts Point area, a historically black area within the Chestertown Historic District, and was abandoned between 1985 and 2002. It is one of only two Grand Army of the Republic halls for African-American veterans known to survive in the Nation.