What is "iio"

IIO or Iio may refer to:

• iiO, an American dance music group
• Iio (surname), in Japan
• Imperial Inspectorate Organization, or its successor the Islamic Inspectorate Organization in Iran
• Independent Investigations Office, a police oversight agency in British Columbia, Canada
• Italian Instabile Orchestra, an experimental big band
• Information Integration Officers, of the U.S. Air Force; see Aircrew Badge
• Diminished supertonic triad (ii), a borrowed chord
• Linux Industrial I/O subsystem

Iio (written: 飯尾) is a Japanese surname. Notable people with the name include:

• , Japanese footballer

• , Japanese footballer

• , Japanese samurai

• , Japanese samurai