St. Mary's Malankara Syrian Catholic Cathedral, Pattom, Trivandrum is the central place of worship of the Syro-Malankara Catholic Church.

It is the seat of the Major Archbishop of Trivandrum.

The tombs of The Venerable Archbishop Geevarghese Mar Ivanios, Archbishop Benedict Mar Gregorios and of Major Archbishop Cyril Baselios Catholicos are located here.

The foundation stone of this cathedral was laid by Archbishop Mar Ivanios in 1950, and the cathedral was consecrated by Archbishop Benedict Mar Gregorios on 22 February 1965.

Pope John Paul II visited the cathedral on 8 February 1986.