The G.A.R. Hall and Museum is a historic museum at 58 Andrew Street in Lynn, Massachusetts. The four story brick building was built for the local outpost of the Grand Army of the Republic, an American Civil War veterans organization, in 1885. It has two storefronts on the ground floor, offices on the second floor, and a large meeting hall on the upper two floors. The roofline originally had ornate brick crenellations, but these were removed in the mid 20th century. The first two floors have also been altered over time, but the meeting hall remains in nearly original condition. With declining membership in the organization, the building was turned over to the city, which operates it as a museum.The building was listed on the National Register of Historic Places in 1979.
