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Educates for
the Mission

Empowering the People of God to Serve the People of God

OST equips for effective ministry and witness to Jesus so that all who are called can serve their own congregations and denominations.

OST Community

Art and Prayer: Spiritual Connection Through Collage (8-part series)

Art and Prayer: Spiritual Connection Through Collage (8-part series)

Thursdays, September 5 – October 24, 2024 | 1:00 PM – 3:00 PM | ONLINERead More »
2024  Women’s Grief Retreat

2024 Women’s Grief Retreat

Explore interconnectedness and transformation through grief. Join us to embrace losses and discover insights that enrich your journey.Read More »
Introduction to Teilhard de Chardin: Discovering A Luminous God

Introduction to Teilhard de Chardin: Discovering A Luminous God

Explore Teilhard de Chardin’s spirituality, focusing on finding God in all things, the Body of Christ, the Eucharist, and environment care.Read More »
WholeMakers: Empowering Leaders for Care of Creation

WholeMakers: Empowering Leaders for Care of Creation

Join Diana Marin for “WHOLEMAKERS” – a 3-part series blending Catholic teachings with action to inspire leaders in climate stewardship.Read More »

Academic Degrees

Preparing Pastoral Leaders

Our faculty is dedicated to the teaching of pastoral ministry rooted in theology and spirituality. For over 120 years, OST has been forming leaders to preach the Gospel to the poor and most abandoned.

Community of Missionary Disciples

OST opens its doors to Christians from all denominations to access theological education. We are an international, intercultural, bilingual, and ecumenical community of learning.

Rooted in Catholic Tradition

Founded in 1903, with a mission dedicated to the teaching of spirituality, diversity, and ministry, OST continues to provide theological education that transforms lives. In 1849, the Missionary Oblates of Mary Immaculate (OMI), an international apostolic religious congregation of priests and brothers, came to San Antonio. Their mission is to preach Christ’s message and serve the people of God, especially the poor and marginalized.