The Pontifical Mission Societies (TPMS), known in some countries as Missio, is the name of a group of Catholic missionary societies that are under the jurisdiction of the Pope. These organizations include the Society for the Propagation of the Faith, the Society of St. Peter the Apostle, the Holy Childhood Association and the Missionary Union of Priests and Religious.

These four societies each received the title "pontifical" in 1922 to indicate their status as official instruments of the pope and of the universal Catholic Church. In most countries, the national director of the Pontifical Mission Societies heads the four societies, as is the case in the United States, and oversees the World Missions Sunday Collection, which is taken up on the third Sunday of October each year in every Catholic parish around the globe.[

The Pope specifically asks the Pontifical Mission Societies to help bring the messages of Christ to the world, especially in countries where Christianity is new, young, or poor. The societies care for and support the younger churches until they are able to be self-sufficient. The Pontifical Mission Societies have, as their primary purpose, the promotion of a universal missionary spirit - a spirit of prayer and sacrifice - among all baptized Catholics.