R
- Battle of Rafa - 1917 - World War I
- Battle of Rain - 1632 - Thirty Years' War
- Battle of Rakvere - 1268 -
- Battle of Ramillies - 1706 - War of the Spanish Succession
- Battle of Ramoth-Gilead - 953 BC - Israeli-Syrian War
- Battle of Rastadt (1796) - Wars of the French Revolution
- Battle of Raszyn - 1809- Napoleonic Wars
- Battle of Raucoux (1746) (in Belgium) - War of the Austrian Succession
- Battle of Ravenna (419) - Roman Empire vs. Ostrogoths
- Battle of Ravenna (432) - Bonifacius vs. Flavius Aëtius
- Battle of Ravenna (1512) - War of the League of Cambrai
- Battle of Reading - 871 - Ethelred of Wessex and Alfred the Great defeated by a Danish army
- Battle of Reading - 1688 - Glorious Revolution
- Battle of Red Cliffs - 208 - Rise of the Three Kingdoms
- Battle of Remagen - 1945 - World War II
- Battle of Rheinfelden - 1638 - Thirty Years' War
- Battle of Rivas 1856 - Central American coalition defeats filibuster William Walker
- The Battle of the River Plate - 1939 - World War II
- Battle of Rivoli - 1796 - Wars of the French Revolution
- Battle of Rocroi - 1643 - Thirty Years' War
- Battle of Romani - 1916 - World War I
- Battle for Rome - 1944 - Italian Campaign (World War II)
- Battle of Rorke's Drift - 1879 - Anglo-Zulu War
- Battle of Rosbach - 1757 - Seven Years' War
- Battle of Roundway Down - 1643 - English Civil War
- Battle of Ruvo - 1503 - French-Spanish Wars in Italy
Read more about this topic: List Of Battles (alphabetical)