USS Oregon (BB-3) was the third and final member of the Indiana class of pre-dreadnought battleships built for the United States Navy in the 1890s. The three ships were built as part of a modernization program aimed at strengthening the American fleet to prepare for a possible conflict with a European navy. Designed for short-range operations in defense of the United States, the three Indiana-class ships had a low freeboard and carried a main battery of four 13-inch (330 mm) guns in a pair of gun turrets. Oregon and her sister ships were the first modern battleships built for the United States, though they suffered from significant stability and seakeeping problems owing to their small size and insufficient freeboard.

The Indiana class was a class of three pre-dreadnought battleships launched in 1893. These were the first battleships built by the United States Navy comparable to contemporary European ships, such as the British HMS Hood. Authorized in 1890 and commissioned between November 1895 and April 1896, these were relatively small battleships with heavy armor and ordnance that pioneered the use of an intermediate battery. Specifically intended for coastal defense, their freeboard was insufficient to deal well with the waves of the open ocean. The turrets lacked counterweights, and the main belt armor was placed too low to be effective under most conditions.