The Papal Zouaves were an infantry battalion, later regiment, dedicated to defending the Papal States. Named after the French zouave regiments, the Zuavi Pontifici were mainly young men, unmarried and Catholic, who volunteered to assist Pope Pius IX in his struggle against the Italian unificationist Risorgimento.

The Zouaves were a class of light infantry regiments of the French Army serving between 1830 and 1962 and linked to French North Africa; as well as some units of other countries modelled upon them. The zouaves were among the most decorated units of the French Army.