Oregon is a nuclear powered attack submarine in the United States Navy. She is the fourth vessel to carry the name Oregon, the 33rd state of US, and the 20th Virginia-class submarine. Secretary of the Navy Ray Mabus announced her name on 10 October 2014 at a ceremony hosted at the Battleship Oregon Memorial in Tom McCall Waterfront Park in Portland, Oregon.

The Virginia class, or the SSN-774 class, is the newest class of nuclear-powered cruise missile fast attack submarines in service with the United States Navy. The class is designed for a broad spectrum of open-ocean and littoral missions, including anti-submarine warfare and intelligence gathering operations. They are scheduled to replace older Los Angeles-class submarines, many of which have already been decommissioned. Virginia-class submarines will be acquired through 2043, and are expected to remain in service until at least 2060, with later submarines expected to operate into the 2070s.