The North Atlantic Blockading Squadron was a squadron of the United States Navy during the American Civil War. It was tasked primarily with preventing Confederate ships from supplying troops and with supporting Union troops.

It was created when the Atlantic Blockading Squadron was split between the North and South Atlantic Blockading Squadrons on 29 October 1861. After the end of the war, the squadron was merged into the Atlantic Squadron on 25 July 1865.

The North Atlantic Blockading Squadron was based at Hampton Roads, Virginia and was tasked with coverage of Virginia and North Carolina.

Commanders

Ships

• USS Alert
• USS Brandywine