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With 58 churches, 5 centers and 36 schools within our diocese, we have a seat for you.

Our vibrant community of 1.3 million Catholics is on a journey of faith together – growing closer to God and another as we explore, experience, and share the mystery of Christ. Under the leadership of Bishop Kevin W. Vann, the OC Diocese works to establish and support dynamic, vibrant parishes and schools welcoming all to live the Gospel with faith, joy, charity and unity. We joyfully welcome you as part of this journey!

1700th Anniversary of the Nicene Creed with Fr. Hugh Barbour, O. Praem.

Join us for an evening marking the 1700th anniversary of the Nicene Creed. On Thursday, July 10, Fr. Hugh Barbour, O. Praem., will speak on the Creed’s roots, its lasting place in the Church, and how it continues to unite Christians in the faith we proclaim.

This free event is hosted by the Office of Ecumenism & Inter-Religion of the Diocese of Orange. It will be held at the Pastoral Center in the 4th Floor Auditorium.

"I AM" Eucharistic Congress 2025

God, present in the crashing waves — this is the gift of the Incarnation. Not distant or abstract, but the Maker of the universe, dwelling among the broken, shining light into darkness. Through His Cross, Resurrection, and Altar, hope is more than a sentiment—it changes how we live.

The light of hope is calling — let it in. Join us for the 2025 “I AM” Eucharistic Conference on October 17-18 at Christ Cathedral!

IMMERSION: Evangelization Training Intensive

Immersion Conference (July 17-19) is one of the most unique Catholic conferences in the world in that we will spend part of the conference ministering to others on the streets of Southern California through a variety of evangelization experiences. Because of the hands-on evangelization experiences, capacity is limited. Learn more below!

Jubilee Marriage Mass

On the Feast of Saints Joachim and Anne, patron saints of married couples, the bishops of California have declared July 26 the Jubilee of Marriage as part of the statewide Radiate Love Initiative.

Join us on Saturday, July 26 at 11:30AM in the Arboretum at Christ Cathedral for a special Diocesan Mass with Fr. Angelos Sebastian celebrating the vocation of marriage and the gift it brings to the Church and the world. Married couples and families are especially invited to attend and to receive the plenary indulgence offered on this holy day.

The Jubilee Year of Hope

Pope Francis had declared 2025 the Jubilee Year of Hope (“Hope does not disappoint”), a sacred time to visit holy sites, perform acts of kindness, seek forgiveness for sins, and renew their relationship with God, one another, and creation.

Visit the St. Callistus Chapel and Crypts

The final phase of Christ Cathedral’s transformation has been completed with the opening of the St. Callistus Chapel and Crypts! The chapel is named in honor of the original St. Callistus parish, which moved to Christ Cathedral when the property was acquired by the diocese.

The Romano-Byzantine-style chapel, located beneath Christ Cathedral, was blessed and dedicated on October 14, the feast day of St. Callistus I. The chapel and crypts is now open to the public. Book a tour at the link below!

Sounds from the Sanctuary: Thou Art the Rock

And Jesus said to Peter, “And so I say to you, you are Peter, and upon this rock I will build my Church, and the gates of the netherworld shall not prevail against it.”

This episode of Sounds from the Sanctuary features music inspired by St. Peter, specifically that exact line from Scripture, as it is from the Gospel reading for the Solemnity of Sts. Peter and Paul – which this year 2025 falls on a Sunday. Some of the oldest Christian texts are the Tu Es Petrus quote from scripture and the sacred litany, Christus Vincit, both appropriate for this year’s solemnity, but also in celebration of the newly elected Pope Leo XIV, the first American pope.

Enjoy musical settings of these medieval texts – from the chanted litany to newly written settings by MacMillan, LaPrairie, and Chepponis, and of course, ending with Virgil Fox’s performance of Thou art the rock on the Hour of Power from our own Arboretum.

Fr. Ian's Homilies: "Right Religion"

“And beginning with Moses and all the prophets, [Jesus] interpreted to them in all the Scriptures the things concerning Himself” (Luke 24.27)—and in doing so, Jesus shows us that the scriptures are about Himself. Convicted by this truth, Fr. Ian preaches every weekend the mystery of Christ as revealed in the Sunday readings. It is Jesus who we seek—and in these homilies, Fr. Ian hopes to provide a glimpse of Him. Father Ian is a Roman Catholic Priest serving at Christ Cathedral in the Diocese of Orange in California.