David Martin Luther Thomas (3 September 1897 - 26 June 1971) was a Welsh Anglican priest, and the Archdeacon of Brecon from 1959[1] to 1969.
Thomas was educated at St David's College, Lampeter.[2] After curacies at Swansea, Knighton and Llansamlet he held incumbencies at Llangammarch then St Barnabas, Swansea from 1935. He was treasurer of Brecon Cathedral from 1958 to 1959.