Dom Thomas de Castro (c.1621-1684) was a native of Divar in Goa, Portuguese India.[1] The Holy See appointed him Vicar Apostolic of Canara on 30 August 1675.[2] He later founded the famous Milagres Church in Mangalore, South Canara, Karnataka. He was the nephew of Dom Matheus de Castro (c.1594−1677), the first Indian Bishop of The Catholic Church.[3]