Bas relief on Albert Emmanuel Hall

What is IMRI?

The International Marian Research Institute is one of the largest international centers of study, research and teaching on Mary, the Mother of Jesus Christ.

Our goal is to gather and present information about the Virgin Mary and to lead people to a loving knowledge of her. In learning more about Mary, we develop a more complete knowledge of Christ, His Church and Christian life. This global, scholarly and pastoral mission is fulfilled through the operation of the educational program, library, gallery, museum, as well as through research, publication, speaking engagements and various other forms of outreach, both actual and virtual.

Our Services

In the Reading Room

Marian Library

Home to one of the world's largest collections of materials on Mary, the Mother of Jesus Christ.

Academic Program

Educational Program

Learn more about our certificate program and the Marian concentration in the University of Dayton's master's degree program in Theological Studies.

Holly Schapker

Art & Exhibits

Discover the art of the Marian Library. Browse traveling exhibits of Marian art as well as treasures from our vast collections.

Our Lady of Dayton

All About Mary

Online Encyclopedic Tool

An encyclopedic tool dedicated to information on Mary, the Mother of Christ. Various languages are represented.

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Publications of faculty, staff and students of the International Marian Research Institute – including The Marian Library Newsletter.

Fr. Roten

Speakers Bureau

Faculty, staff and friends of the ML/IMRI are available for conferences, diocesan and parish formation programs, workshops and retreats on Marian topics.

Radio Maria Logo

Radio Maria – Marian Studies and Spirituality

Broadcast live from the Marian Library every Thursday at 2:00 p.m.