Milton Armory is a historic National Guard armory located at Milton, Northumberland County, Pennsylvania. It was designed by W.G. Wilkins Co. It was built in 1922 and expanded in 1930. It is a "T"-plan building consisting of a two-story administration building with a one-story drill hall executed in the Tudor Revival style. It is constructed of brick and sits on a concrete foundation. It features stone window and door surrounds.

It was added to the National Register of Historic Places in 1991.

See also

• Sunbury Armory: also NRHP-listed in Northumberland County
• National Register of Historic Places listings in Northumberland County, Pennsylvania