USS Philadelphia was a 1240-ton, 36-gun sailing frigate of the United States Navy. Originally named City of Philadelphia, she was built in 1798–1799 for the United States government by the citizens of Philadelphia, Pennsylvania. Funding for her construction was the result of a funding drive which raised $100,000 in one week, in June 1798. She was designed by Josiah Fox and built by Samuel Humphreys, Nathaniel Hutton and John Delavue. Her carved work was done by William Rush of Philadelphia.