The "Wyoming" class was a pair of dreadnought battleships built for the United States Navy. and were authorized in early 1909, and were built between 1910 and 1912. These were the fourth dreadnought design of the US Navy, but only an incremental improvement over the preceding , and the last US battleships to use 12" guns. The primary changes were the addition of a sixth twin-gun turret, and improved armor protection, including the first use of a torpedo bulkhead on American battleships. The Navy considered using more powerful guns, but this would have caused delays and required larger ships.