The Italian invasion of Libya occurred in 1911, when Italian troops invaded the Turkish province of Libya and started the Italo-Turkish War. As result, Italian Tripolitania and Italian Cyrenaica were established, later unified in the colony of Italian Libya.

Italian Tripolitania was an Italian colony, located in present-day western Libya, that existed from 1911 to 1934. It was part of the territory conquered from the Ottoman Empire after the Italo-Turkish War in 1911. Italian Tripolitania included the western northern half of Libya, with Tripoli as its main city. In 1934, it was unified with Italian Cyrenaica in the colony of Italian Libya. In 1939, Tripolitania was considered a part of the Kingdom of Italy's 4th Shore.