UMO

UMO can refer to:


 * Unknown Mortal Orchestra, a psychedelic rock band from New Zealand
 * United Macedonian Organisation: Ilinden–Pirin, a Macedonian organization in Bulgaria
 * University of Maine at Orono (unofficial abbreviation)
 * Mozilla Add-ons, a website formerly referred to as UMO (from update.mozilla.org)
 * UMO Jazz Orchestra, a Finnish big band
 * University of Mount Olive, a private Christian University located in Mount Olive, North Carolina, USA.