Organ may refer to:

• Organ (anatomy), a group of tissues which perform some function.
• Organ (music), a family of keyboard instruments which is usually played with both the hands and the feet.
  • Pipe organ
  • Electronic organ
• The Organ, an indie rock band.
• Stalin's Organ, another name for the Katyusha rocket launcher.
• Organ, Hautes-Pyrénées, a commune in the French département of Hautes-Pyrénées
• In warfare, a 17th century historical artillery design, resembling the appearance of the musical instrument.
• In politics, an agency, institution, council, or parliament of a given organization, such as the European Union, United Nations, or African Union.

Organ | Órgano | Orgue | Órgano (homónimos) | Organo | Organ | Órgão | Organ | Orgán | Orgel | Орган