The St. Mary's Cathedral, also called Garrison Church, is a Roman Catholic cathedral church located in Jammu, Jammu and Kashmir, India.

[1] It was founded in 1986 by Bishop Hippolytus Anthony Kunnunkal, following with the diocese's elevation by Pope John Paul II's apostolic constitution Qui Sanctissimi Numinis.

Pope John Paul II 1986 apostolic constitution, Qui Sanctissimi Numinis, established the Diocese of Jammu-Srinigar from the Apostolic Prefecture of Kafiristan and Kashmir in response to the church's noticeable expansion and growth in the region.

[2] The seat of this new diocese was transferred to St. Mary's Cathedral from the seat of the Prefecture, Holy Family Catholic Church, in the same year under the guidance of the first diocese's first bishop, Hippolytus.

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