It has been suggested that this article or section be merged into IO. (Discuss)

Io or io may refer to:

• Io (mythology), daughter of Inachus in Greek mythology
• Io (moon), a moon of Jupiter
• IO (band), a German band
• Io (English Band), an English experimental band
• Io Matua Kore, in some Māori traditions the supreme god
• 85 Io, an asteroid
• Io (genus), a genus of freshwater snail in the family Pleuroceridae
• The Hawaiian Hawk's local name
• Io (voievodal title particle), a particle of a title used by Romanian royalty from Moldavia and Walachia
• Iwo Jima, a volcanic island in Japan

In modern fiction:

• Blind Io, the current king of the gods in Terry Pratchett's Discworld series of fantasy novels
• Io (Dungeons & Dragons), the chief deity worshipped by dragons in the Dungeons & Dragons role-playing game
• Io (Babylon 5), a space station in the science fiction television show Babylon 5

In technology:

• The IO.SYS file in DOS and Windows 95, 98 and ME.
• Io (programming language), a pure object-oriented programming language
• iO Digital Cable Service, a digital cable service offered by Cablevision
• Mitsubishi Pajero iO, a mini SUV produced by Mitsubishi Motors
• Input/Output, communication between information processing systems

[ See also

• IO
• .io
• IiO
• ImprovOlympic

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