Oct. 18 is World Mission Sunday

World Mission Sunday will take place on Oct. 18, marking 100 years since Pope Pius XI established the day in 1926. This year's observance focuses on the theme, “One in Christ, united in mission.”

The day serves as a time for Catholics to provide prayerful and financial support for missionary work in the poorest and most remote areas of the world. Collections from the day help priests in mission territories spread the Gospel.

In a video message released earlier this year, Pope Leo XIV thanked the Pontifical Mission Societies for their work in missionary cooperation. The Pope noted his own gratitude for the service provided during his ministry in Peru.