USS Pennsylvania was a four-decked 140-gun ship of the line of the United States Navy, named for the Commonwealth of Pennsylvania. She was the largest sailing warship ever built for the United States, and the equivalent of a first-rate of the British Royal Navy, but her only cruise was a single trip from Delaware Bay to Chesapeake Bay. She was just as large as the Spanish four-decked ship of the line Santisima Trinidad, built over 60 years earlier.