Four ships of the United States Navy have been named USS Oregon, in honor of the Oregon Territory or the 33rd state.
- The first was a brig purchased in 1841 to support the U.S. Exploring Expedition and in commission until 1845.
- A never-launched monitor previously named and Hercules was also called Oregon before she was broken up in the ways.
- The third was a battleship that saw action in the Spanish–American War and was in commission from 1896 to 1919.
- The fourth is a
Confederate States Navy
- One ship of the Confederate States Navy also bore the name Oregon. See .