Röntgen or Roentgen may refer to:

• Wilhelm Conrad Röntgen, German physicist
• Abraham Röntgen and David Röntgen, German cabinetmakers
• Julius Röntgen, German-Dutch composer
• Röntgen, a unit of measurement for ionizing radiation, named after Wilhelm Conrad Röntgen
• Roentgen (album), a J-Pop album by the solo artist HYDE
• Roentgen/Röntgen Rays, an alternative name for X-rays
• Kevin Roentgen, musician; descendant of Wilhelm Röntgen

This disambiguation page lists articles associated with the same title. If an internal link led you here, you may wish to change the link to point directly to the intended article.