Pope Leo XIV to mark 100th World Mission Day

Pope Leo XIV has selected the theme "One in Christ, united in mission" for the 100th anniversary of World Mission Sunday, which falls on October 18, 2026. The observance follows a week of prayer for missions beginning Sunday, October 11.

In his message for the centenary, the Pope encouraged the Church to continue its missionary path with joy and zeal. He called for unified hearts, reconciled communities, and a willingness to collaborate through generosity and trust.

The global collection for World Mission Sunday supports the Œuvres Pontificales Missionnaires, specifically the Œuvre de la Propagation de la Foi, l’Enfance Missionnaire, Saint Pierre Apôtre, and l’Union Pontificale Missionnaire. These funds assist pastoral communities in regions where the Church is still young by supporting evangelization and catechesis projects. The tradition of this global collection was established in 1926.