Pope Leo XIV Appoints Sr. Mary Teresa Barron as Adjunct Secretary for Dicastery for Evangelization

 Pope Appoints Sr. Mary Teresa Barron as Adjunct Secretary for Dicastery for Evangelization

Vatican City — Pope Leo XIV has appointed Sister Mary Teresa Barron, N.S.A., as Adjunct Secretary of the Dicastery for Evangelization within the Section for First Evangelization and New Particular Churches. In this role, she will also serve as President of the Pontifical Mission Societies, with her term officially beginning on January 4, 2027.

Sr. Barron currently serves as Superior General of the Missionary Sisters of Our Lady of Apostles, a position she has held since 2018.

Biographical Summary

• Origin: Born on November 7, 1968, in Donegal, Ireland.

• Education: Holds master’s degrees in Public Healthcare Administration (Institute of Public Administration, Dublin) and International Development (Kimmage Institute, Dublin).

• Leadership Roles:

  • 2023–2025: President of the International Union of Superiors General (UISG) in Rome.

  • 2022–2025: President of the Service of Documentation and Study on Global Mission (SEDOS).

  • 2018–Present: Superior General of the Missionary Sisters of Our Lady of Apostles (N.S.A.).