1) City in Switzerland 
==Name== Nyon derives from one of the names used by the Romans for the town, Noviodunum or Noiodunum. Other names for the town, particularly of colonies placed there, are Colonia Iulia Equestris or Colonia Julia Equestris, Colonia Equestris Noiodunum, Equestris, Civitas Equestrium, and Civitas Equestrium Noiodunum. ==History== Nyon is first mentio...