The following is a List of Roman wars and battles fought by the ancient Roman Kingdom, Roman Republic and Roman Empire, organized by date.
Wars with the Latins and the Sabines
War with Fidenae and Veii
Second war with Fidenae and Veii
Second Sabine War
War with the Latins
Roman-Sabine wars
War with the Volsci
War with Gabii
War with the Rutuli
495 BC – Battle of Aricia – consul Publius Servilius Priscus Structus defeats the Aurunci.
Battle of Allia River (390 BC) – Gauls defeat the Romans, then sack Rome.
First Illyrian War (229-228 BC)
Second Illyrian War (220-219 BC)
First Macedonian War (214-205 BC)
Battle of Placentia (194 BC) – Roman victory over the Boian Gauls
Battle of Mutina (193 BC) – Roman victory over the Boii, decisively ending the Boian threat.
Aetolian War (191-189 BC)
Third Illyrian War (169-167 BC)
Lusitanian War (155-139 BC)
First Servile War (135-132 BC)
Second Servile War (104-103 BC)
Second Mithridatic War (83-82 BC)
Pompey's Georgian campaign (65 BC)
Battle of the Teutoburg Forest (9) – German leader Arminius ambushes three Roman legions under Publius Quinctilius Varus.
Battle of the Weser River (16) - Legions under Germanicus defeat German tribes of Arminius.
Kitos War (115-117)
Second Jewish Revolt (132-135)
See Crisis of the Third Century
The 4th century begins with civil war resulting in the ascendancy of Constantine I, then, after his death, wars with Persia and Germanic tribes, punctuated frequently with more civil wars.
Civil War – 366 – Battle of Thyatira – The army of the Roman emperor Valens defeats the usurper Procopius.
Civil War – 388 – Battle of the Save – Emperor Theodosius I defeats the usurper Magnus Maximus.
Civil War – 394 – Battle of the Frigidus – Theodosius I defeats and kills the usurper Eugenius and his Frankish magister militum Arbogast.
The 5th century involves the final fall of the Western Roman Empire to Goths, Vandals, Alans, Huns, and Franks.
Civil War – 432 – Battle of Ravenna – Bonifacius defeats rival Roman general Flavius Aetius, but is mortally wounded in the process.
War with Visigoths – 436 – Battle of Narbonne – Flavius Aetius again defeats the Visigoths led by Theodoric.