Grand Army of the Republic Hall, GAR Building, or variants thereof, may refer to:
Florida Grand Army of the Republic Memorial Hall (St. Cloud, Florida)
Idaho Grand Army of the Republic Hall (Boise, Idaho)
Illinois Grand Army of the Republic Hall (Aurora, Illinois) Grand Army of the Republic Memorial Hall (Peoria. Illinois)
Iowa G.A.R. Memorial Hall (Algona, Iowa) Franklin County G. A. R. Soldiers' Memorial Hall (Iowa)
Massachusetts Grand Army of the Republic Hall (Lynn, Massachusetts), listed on the National Register of Historic Places Grand Army of the Republic Hall (Orange, Massachusetts) Grand Army of the Republic Hall (Rockland, Massachusetts) Grand Army of the Republic Hall (Worcester, Massachusetts) Lothrop Memorial Building-G.A.R. Hall, Taunton, Massachusetts
Michigan Grand Army of the Republic Building (Detroit), Detroit, Michigan, listed on the NRHP in Wayne County, Michigan Grand Army of the Republic Hall (Marshall, Michigan), a state historic site in Calhoun County Sunfield G. A. R. Hall, listed on the National Register of Historic Places
Minnesota Clearwater Masonic and Grand Army of the Republic Hall, also known as Clearwater Masonic Lodge Grand Army of the Republic Hall (Grand Meadow, Minnesota) Grand Army of the Republic Hall (Litchfield, Minnesota)
Nebraska Grand Army of the Republic Memorial Hall (Nebraska City, Nebraska)
New Hampshire Grand Army of the Republic Hall (Peterborough), see
New York Grand Army of the Republic Hall (Halsey Valley, New York) G.A.R. Memorial Hall (Hunt, New York)
Ohio Grand Army of the Republic Memorial Hall (Ironton, Ohio), on the National Register of Historic Places listings in Lawrence County, Ohio
Pennsylvania Grand Army of the Republic Hall (Johnstown, Pennsylvania) GAR Building (Lykens, Pennsylvania), listed on the National Register of Historic Places in Dauphin County, Pennsylvania
South Dakota
Grand Army of the Republic Hall (Yankton, South Dakota), G.A.R. Hall Art Gallery (Home of Yankton Area Arts Association)
Wisconsin Boscobel Grand Army of the Republic Hall, Boscobel, Wisconsin Grand Army of the Republic Memorial Hall, now the Wisconsin Veterans Museum, Madison
See also Grand Army of the Republic Grand Army of the Republic Memorial (disambiguation) Franklin County G. A. R. Soldiers' Memorial Hall (Iowa) Grand Army Plaza, Manhattan, New York G. A. R. Memorial Junior Senior High School Memorial Hall (Rockford, Illinois) National Civil War Museum, Harrisburg, Pennsylvania New England Civil War Museum, Rockville, Connecticut Porter County Memorial Opera Hall