The 104th Aviation Regiment is an aviation regiment of the U.S. Army, primarily provided by the Army National Guard.

Both battalions of the regiment are part of the Combat Aviation Brigade, 28th Infantry Division.

The 1st Battalion is an attack helicopter battalion of the Pennsylvania Army National Guard.

The 2d Battalion, 104th Aviation Regiment was formed in October, 1990 at Fort Indiantown Gap as an assault helicopter battalion.

The 2nd Battalion exchanged its Bell UH-1 Hueys (as an aviation battalion) for Sikorsky UH-60 Blackhawks (as a general support aviation battalion) in 2002.