Hadrianus

Hadrianus may refer to:

People

 * Hadrian (76–138), Roman emperor
 * Gaius Fabius Hadrianus, Roman colonial administrator & politician
 * Pope Adrian (disambiguation) (any of the listed popes)
 * Hadrianus Junius (1511–1575), also known as Adriaen de Jonghe

Other

 * 7446 Hadrianus, an asteroid
 * Hadrianus (turtle), an extinct genus of tortoise
 * The origin of the Emperor family, Hadria Picena or Hatria the modern Atri in Abruzzo region, Italy