A victory title is an honorific title adopted by a successful military commander to commemorate his defeat of an enemy nation. The practice is first known in Ancient Rome and is still most commonly associated with the Romans, but it was also adopted as a practice by many later empires, especially the French, British and Russian Empires.

Victory titles were suffixed to the commander's name and were usually the name of the enemy defeated by the commander. Some victory titles became hereditary cognomina, while others were personal agnomina and not carried on by later family members. Names like Africanus ("the African"), Numidicus ("the Numidian"), Isauricus ("the Isaurian"), Creticus ("the Cretan"), Gothicus ("the Goth"), Germanicus ("the German") and Parthicus ("the Parthian") expressed the triumphal subjugation of these peoples or their territories, or commemorated the locations of general's successful campaigns, equivalent to modern titles like Lawrence of Arabia, and were not indicators of origin.

The practice of awarding victory titles was established in the Roman Republic. The most famous grantee of a Republican victory title was Publius Cornelius Scipio, who for his great victories in the Second Punic War, specifically the Battle of Zama was awarded by the Roman Senate the title "Africanus" and is thus known to history as "Scipio Africanus" (his adopted grandson Scipio Aemilianus Africanus was awarded the same title after the Third Punic War and is known as "Scipio Africanus the Younger"). Other notable holders of such victory titles include Quintus Caecilius Metellus Numidicus, who was replaced by Gaius Marius as command-in-chief of the Jugurthine War; Publius Servilius Vatia Isauricus, who commanded Roman anti-pirate operations in the eastern Mediterranean (and was father of Julius Caesar's colleague in his second consulate); Publius Servilius Vatia Isauricus (in 48 BC); while Marcus Antonius Creticus, another anti-piracy commander (and father of Caesar's magister equitum, Mark Antony) actually lost in Crete and was called Creticus mockingly, as it also meant "made of chalk". Marcus Porcius Cato Uticensis received his title posthumously from those glorifying his suicide, rather than defeat, at Utica.

The practice continued in the Roman Empire, although it was subsequently amended by some Roman Emperors who desired to emphasise the totality of their victories by adding Maximus ("the Greatest") to the victory title (e.g., Parthicus Maximus, "the Greatest Parthian"). This taste grew to be rather vulgar by modern standards, with increasingly grandiose accumulations of partially fictitious victory titles.

In a broader sense, the term victory title is sometimes used to describe the repeatable awarding of the invariable style of Imperator (Greek equivalent Autokrator; see those articles), which is the highest military qualification (as modern states have awarded a non-operational highest rank, sometimes instituted for a particular general), but even when it marks the recipient out for one or more memorable victories (and the other use, as a permanent military command for the ruler, became in fact the more significant one), it does not actually specify one.

After the fall of Western Rome, the practice continued in modified form.

The term "victory-title" occurs in English from as early as 1938.

Modern monarchs awarded titles in commemoration of major military victories, but in the guise of a feudal aristocratic title, often hereditary, but only in appearance: an actual fief was not required, indeed they often were granted in chief of a battlefield where the awarding monarch simply had no constitutional authority to grant anything validly under local law.