World Mission Sunday 2026

World Mission Day was first established by Pope Pius XI, beginning in October 1927. This year the Church celebrates the 100th World Mission Day on Sunday, October 18, 2026. As the Church prepares to celebrate this day, Pope Leo XIV calls us to unity in Christ, love, and renewed missionary commitment "with joy and zeal in the Holy Spirit" in his first World Mission Sunday Message: “One in Christ, united in mission."

Related Resources:

World Mission Sunday 2026 Website (The Pontifical Mission Societies USA)

World Mission Sunday Resources

Pope Leo XIV World Mission Sunday Resources (pdf)

World Mission Sunday Homily Helps (pdf)