The Congregation for the Evangelization of Peoples (Latin: Congregatio pro Gentium Evangelizatione) is a congregation of the Roman Curia of the Catholic Church in Rome, responsible for missionary work and related activities. It is also known by its former title, the Sacred Congregation for the Propagation of the Faith (Latin: Sacra Congregatio de Propaganda Fide), or simply the Propaganda Fide.

In principle it is responsible for pre-diocesan missionary jurisdictions (of the Latin rite): Mission sui iuris, Apostolic prefecture (neither entitled to a titular bishop) Apostolic vicariate; equivalents of other rites (e.g. Apostolic exarchate) are in the sway of the Congregation for the Oriental Churches. However many former missionary jurisdictions - mainly in the Third World - remain, after promotion to diocese of (Metropolitan) Archdiocese, under the Propaganda Fide instead of the normally competent Congregation for Bishops, notably in countries/regions where the Catholic church is too poor/small (as in most African countries) to aspire self-sufficiency and/or local authorities hostile to Catholic/Christian/any (organized) faith.

It was founded by Pope Gregory XV in 1622 to arrange missionary work on behalf of the various religious institutions, and in 1627 Pope Urban VIII established within it a training college for missionaries, the Pontificio Collegio Urbano de Propaganda Fide. When Pope Paul VI reorganized and adjusted the tasks of the Roman Curia with the publication of Regimini Ecclesiae Universae 15 August 1967, the name of the congregation was changed to the Congregation for the Evangelization of Peoples.The early congregation was established in the Palazzo Ferratini, donated by Juan Bautista Vives, to the south of the Piazza di Spagna. Two of the foremost artistic figures of Baroque Rome were involved in the development of the architectural complex; the sculptor and architect Gianlorenzo Bernini and the architect Francesco Borromini.

The current Prefect of the Congregation is Cardinal Luis Antonio Tagle since December 2019. The current Secretary is Archbishop Protase Rugambwa. The current Adjunct Secretary (and President of the Pontifical Mission Societies) is Archbishop Giampietro Del Toso The Under-Secretary is Father Ryszard Szmydki, O.M.I. The Archivist of the Archives of the Congregation is Monsignor Luis Manuel Cua Ramos. Monsignors Lorenzo Piva and Camillus Nimalan Johnpillai assist as Office Heads of the Congregation.

Samuel Alphonsius Stritch (August 17, 1887 – May 27, 1958) was an American Cardinal prelate of the Catholic Church. He served as archbishop of the Archdiocese of Chicago from 1940 to 1958 and as pro-prefect of the Sacred Congregation for Propagation of the Faith from March 1958 until his death two months later. He was elevated to the cardinalate by Pope Pius XII in 1946.