The fourth USS Philadelphia (C-4), also known as "Cruiser No. 4", was a cruiser of the United States Navy.
She was laid down 22 March 1888 by William Cramp and Sons, Philadelphia, Pennsylvania, launched 7 September 1889, sponsored by Miss Minnie Wanamaker, daughter of merchant and philanthropist John Wanamaker; and commissioned 28 July 1890, Capt. Robert Forbes Bradford in command.