Don River, Russia, one of the main rivers of Russia.
Don Juan, Don Quijote, Don Bosco, or in the operas Don Carlos, Don Giovanni, Don Pasquale, etc. Hence, it is also a (rather old-fashioned) slang name for a Spaniard.
Don is also commonly used as a general term for mafia bosses.
River Don, England, a river in South Yorkshire which rises in the Pennines and flows 112 km (70 miles) eastwards to join the Yorkshire Ouse shortly before it, in turn, flows into the Humber.
in Spanish and Italian, Don is a title of respect for a male, prefixed to the name, often paired alone with the first/Christian name (e.g.
Don is also commonly used as a general term for mafia bosses, coming from the Italian term