There is a total of 97195 clues beginning with r
- River of Asia
- River of Aswan
- River of Austria
- River of Austria and Hungary
- River of Austria
- River of Avignon
- River of Ayr
- River of Ayrshire
- River of Baluchistan
- River of battle fame
- River of battle, 1690
- River of Bavaria
- River of Belgian Congo
- River of Belgium
- River of Belgium and France
- River of Belgium's West Flanders
- River of Belgium
- River of Berlin
- River of Berlin
- River of Bern
- River of Berne
- River of blood
- River of blues
- River of Bohemia
- River of Bolivia
- River of Bolivia
- River of Borneo
- River of Bosnia and Herzegovina
- River of Brandenburg
- River of Brandenburg
- River of Brazil
- River of Brazil and Argentina
- River of Brazil, 400 mi to Tapajos
- River of Brazil
- River of Bremen
- River of Bristol
- River of Burgundy
- River of Burgundy
- River of Burns poem
- River of Caen
- River of Cairo
- River of Calif
- River of Canada
- River of Canada and US
- River of canal in Sweden
- River of Caucasus, 380 miles to Caspian
- River of central Africa
- River of central Asia
- River of Central Asia
- River of central Brazil
- River of central China
- River of central England
- River of central England
- River of central Europe
- River of Central Europe
- River of central Germany
- River of central Germany
- River of Central India
- River of central Italy
- River of central Italy, to locals
- River of central Italy
- River of central Missouri
- River of Champagne
- River of Charon
- River of Charon's ferry
- River of chateaux
- River of Chile
- River of China
- River of China
- River of Ciudad Bolivar
- River of Cologne
- River of Colombia
- River of Colombia, 625 miles into Orinoco
- River of Congo Republic
- River of Coolidge Dam
- River of Czechoslovakia
- River of Damascus
- River of decision
- River of decision
- River of Deutschland
- River of Devon
- River of Devon
- River of Dresden
- River of Duisburg
- River of E Asia
- River of E Asia
- River of eastern Asia
- River of eastern England
- River of eastern France
- River of eastern Germany
- River of eastern Wales
- River of Egypt
- River of Engadine valley
- River of England
- River of England into North Sea
- River of England's East Midlands
- River of England
- River of Essen
- River of Estonia
- River of Eurasia