title: Unio
text: # Unio
  
  Unio may refer to:
  
  * Unio (bivalve), a genus of freshwater mussels
  * Unio (sternwheeler), a steamboat that operated in Oregon, United States, in 1861, before being renamed Union
  * UNI/O, an asynchronous serial bus
  * UNIO Satu Mare, a Romanian machine-building company
  * Utdanningsgruppenes Hovedorganisasjon or Confederation of Unions for Professionals, a national trade union center in Norway
  