John McCarthy DD (1858-1950) was an Irish-born roman catholic priest who served as Bishop of Sandhurst in Victoria, Australia, from 1917 until his death in 1950.John McCarthy was born in Fermoyle, Co. Clare, educated at Ballyvaughan and St Flannan's College, the Killaloe diocesan college, in Ennis before going to the Irish College in Paris from 1877 until 1883, studying theology and philosophy, he was ordained a priest in 1883. He served as a priest in Galway, Ireland, before 1890 when he moved to Melbourne, Australia. He served in the Woodend and St Kilda parishes before becoming private secretary to Archbishop Carr.