Paul Dmitriievich Romanovsky-Ilyinsky (27 January 1928 – 10 February 2004) was a three-time mayor of Palm Beach, Florida, and the only child of Grand Duke Dmitri Pavlovich of Russia and his morganatic wife, Cincinnati heiress Audrey Emery.
He was a great-grandson of Tsar Alexander II of Russia and a first cousin once removed of Nicholas II.