Dio may refer to: Given name. Dio or Dion, masculine given name. Dio of Alexandria, Greek philosopher and ambassador (1st century BC) Dio Chrysostom, Roman philosopher (AD 40–120) Cassius Dio, Roman historian (AD 160–230) Cassius Dio (consul 291) Dio Lequaglie (born 1963), Italian beach volleyball player. Surname. Ronnie James Dio (1942–2010), American heavy metal singer. Johnny Dio (1914–1979), Italian American mobster. Places. Dio, Burkina Faso. Diö, a small village in southern Sweden. Dio-et-Valquières, France. Dio-Gare, Mali. Diu, India, formerly known as Dio. Music.
https://en.wikipedia.org/wiki/Dio