Dio

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

 * Dio (band), an American heavy metal band
 * Dio – Distraught Overlord, a Japanese heavy metal band
 * "Dio" (song), a song by Tenacious D on the 2001 eponymous album
 * Dio (album), an album by Jørn Lande
 * "Dio", a song from the Throwing Muses album Red Heaven

Abbreviations

 * Days Inventory Outstanding
 * Diocesan Boys' School, Hong Kong
 * Diocesan Girls' School, Hong Kong
 * St. John's Diocesan Girls' Higher Secondary School, India
 * Diocesan School for Girls (Auckland), New Zealand
 * Defence Intelligence Organisation, Australian military intelligence agency
 * Defense Industries Organization, conglomerate of companies run by the Islamic Republic of Iran
 * Defence Infrastructure Organisation, an operating arm of the UK Ministry of Defence
 * Diet-induced obesity model (DIO model), an animal model used in laboratory research
 * Digital Input/Output

Other uses

 * the Italian word for God
 * Dio Brando, a fictional character and the main antagonist from the manga and anime series JoJo's Bizarre Adventure known simply as DIO
 * Honda Dio, motorscooter produced in India
 * Radio Dio, an independent radio station, broadcasting to the French city of Saint-Etienne
 * Dio Eraclea, character from the anime Last Exile as well as its sequel Last Exile: Fam, The Silver Wing