Fort Albany was a bastioned earthwork built by the Union Army in Arlington County (then still known as Alexandria County) in Virginia. It was built in 1861 as part of the defense of Washington during the American Civil War. No trace of the fort remains, although an historic marker shows the location where the fort once stood, guarding the approach to the Long Bridge along the Columbia Turnpike, near the modern-day Pentagon.

Fort Albany has been recognized as an Historic District by Arlington County.

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