|Location||4 Academy St., Oneonta, New York|
|Area||0.5 acres (0.20 ha)|
|Architect||Heins, George L.|
|Architectural style||Late Victorian, castellated|
|MPS||Army National Guard Armories in New York State MPS|
|NRHP reference No.||95000078|
|Added to NRHP||March 2, 1995|
Oneonta Armory is a historic National Guard armory building located at Oneonta in Otsego County, New York. It is a brick and stone castle-like structure built in 1905. It was designed by State architect George L. Heins. It consists of a two-story administration building with an attached drill shed. The building features a 5-story octagonal tower at the southwest corner and a 2+1⁄2-story square tower at the northwest corner.
- "National Register Information System". National Register of Historic Places. National Park Service. March 13, 2009.
- Nancy L. Todd (December 1994). "National Register of Historic Places Registration: Oneonta Armory". New York State Office of Parks, Recreation and Historic Preservation. Retrieved 2010-01-14. See also: "Accompanying four photos".