Totila, original name Baduila (died 1 July 552), was the penultimate King of the Ostrogoths, reigning from 541 to 552 AD. A skilled military and political leader, Totila reversed the tide of the Gothic War, recovering by 543 almost all the territories in Italy that the Eastern Roman Empire had captured from his Kingdom in 540.

A relative of Theudis, sword-bearer of Theodoric the Great and king of the Visigoths, Totila was elected king by Ostrogothic nobles in the autumn of 541 after King Witigis had been carried off prisoner to Constantinople. Totila proved himself both as a military and political leader, winning the support of the lower classes by liberating slaves and distributing land to the peasants. After a successful defence at Verona, Totila pursued and defeated a numerically superior army at the Battle of Faventia in 542 AD. Totila followed these victories by defeating the Romans outside Florence and capturing Naples. By 543, fighting on land and sea, he had reconquered the bulk of the lost territory. Rome held out, and Totila appealed unsuccessfully to the Senate in a letter reminding them of the loyalty of the Romans to his predecessor Theodoric the Great. In the spring of 544 the Eastern Roman emperor Justinian I sent his general Belisarius to Italy to counterattack, but Totila captured Rome in 546 from Belisarius and depopulated the city after a yearlong siege. When Totila left to fight the Byzantines in Lucania, south of Naples, Belisarius retook Rome and rebuilt its fortifications.

After Belisarius retreated to Constantinople in 549, Totila recaptured Rome, going on to complete the reconquest of Italy and Sicily. By the end of 550, Totila had recaptured all but Ravenna and four coastal towns. The following year Justinian sent his general Narses with a force of 35,000 Lombards, Gepids and Heruli to Italy in a march around the Adriatic Sea to approach Ravenna from the north. In the Battle of Taginae, a decisive engagement during the summer of 552, in the Apennines near present-day Fabriano, the Gothic army was defeated, and Totila was mortally wounded. Totila was succeeded by his relative, Teia, who later died at the Battle of Mons Lactarius. Pockets of resistance, reinforced by Franks and Alemanni who had invaded Italy in 553, continued until 562, when the Byzantines were in control of the whole of the country following Justinian's conquests.

The Gothic War between the East Roman (Byzantine) Empire during the reign of Emperor Justinian I and the Ostrogothic Kingdom of Italy took place from 535 until 554 in the Italian peninsula, Dalmatia, Sardinia, Sicily and Corsica. It was one of the last of the many Gothic Wars with the Roman Empire. The war had its roots in the ambition of the East Roman Emperor Justinian I to recover the provinces of the former Western Roman Empire, which the Romans had lost to invading barbarian tribes in the previous century (the Migration Period).

The war followed the East Roman reconquest of the province of Africa from the Vandals. Historians commonly divide the war into two phases:

From 535 to 540: ending with the fall of the Ostrogothic capital Ravenna and the apparent reconquest of Italy by the Byzantines.

From 540/541 to 553: a Gothic revival under Totila, suppressed only after a long struggle by the Byzantine general Narses, who also repelled an invasion in 554 by the Franks and Alamanni.In 554 Justinian promulgated the Pragmatic sanction which prescribed Italy's new government. Several cities in northern Italy held out against the East Romans until 562. By the end of the war Italy had been devastated and depopulated. The East Romans found themselves incapable of resisting an invasion by the Lombards in 568, which resulted in Constantinople permanently losing control over large parts of the Italian peninsula.