| Honorific-Prefix: | The Right Reverend |
| Jack Thomas | |
| Bishop of Swansea and Brecon | |
| Church: | Church in Wales |
| Diocese: | Diocese of Swansea and Brecon |
| Term: | 1958 to 1976 |
| Predecessor: | Glyn Simon |
| Successor: | Benjamin Vaughan |
| Birth Name: | John James Absalom Thomas |
| Birth Date: | 17 May 1908 |
| Tomb: | --> |
| Nationality: | British |
| Religion: | Anglicanism |
| Partner: | --> |
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John James Absalom Thomas (17 May 1908 – 27 February 1995[1]) was the Bishop of Swansea and Brecon from 1958[2] until 1976.[3]
Thomas was educated at the University of Aberystwyth and Keble College, Oxford, and was ordained in 1932.[4] He held curacies at Llancaiach and Sketty after which he was the Bishop's Messenger and Examining Chaplain for the Swansea diocese. He was then Warden of Church Hostel, Bangor, and a lecturer at the University College of North Wales until 1944. Following this he was Vicar of Swansea and then Archdeacon of Gower - before being enthroned as Bishop of Swansea and Brecon on 2 February 1958.[5] He made his son, David, (who served as Provincial Assistant Bishop in the Church in Wales from 1996 to 2008) a deacon on 21 May 1967 at St Asaph Cathedral; Jack retired in 1976.