Irvington is a town on the Rappahannock River in Lancaster County, Virginia, United States. The population was 432 at the 2010 census. Located on a peninsula known as the Northern Neck, it has been designated a historic district.

The Rappahannock River is a river in eastern Virginia, in the United States, approximately 195 miles (314 km) in length. It traverses the entire northern part of the state, from the Blue Ridge Mountains in the west where it rises, across the Piedmont to the Fall Line, and onward through the coastal plain to flow into the Chesapeake Bay, south of the Potomac River.