Roentgen (unit), unit of measurement for ionizing radiation, named after Wilhelm RöntgenWilhelm Röntgen (1845–1923), German physicist, discoverer of X-raysAbraham Roentgen (1711–1793), German cabinetmakerDavid Roentgen (1743–1807), German cabinetmaker, son of Abraham RoentgenEngelbert Röntgen (1829–1897), German-Dutch violinistHeinrich Röntgen (1787–1813), German explorerJulius Röntgen (1855–1932), German-Dutch composer of classical music, son of Engelbert RöntgenKevin Roentgen, musician, singer with American rock band OrsonRoentgen (album), by Japanese singer Hyde reference