Roger William Bede Vaughan (9 January 1834 – 18 August 1883) was an English Benedictine monk of Downside Abbey and the second Roman Catholic Archbishop of Sydney in Australia from 1877 to 1883.
Vaughan was born near Ross-on-Wye, Herefordshire, in 1834, one of 14 children. His father, lieutenant John Francis Vaughan, belonged to one of the oldest recusant families in England. His mother was Elizabeth Louise Rolls, a convert. His brother was Cardinal Herbert Vaughan. All his siblings, save three, entered church ministry.
Vaughan was probably afflicted with congenital heart disease. At the age of six he was sent to a boarding school in Monmouth for three years, but his health proved to be delicate and for some years he was privately tutored at home. At age seven he was sent briefly to a local school, but his mother worried over his health and he was educated at home in a religious atmosphere. In September 1850 he was sent to the Benedictine St Gregory's College at Downside near Bath. His mother's death in 1853 prompted serious thoughts of a religious vocation and on 12 September 1853 he took the Benedictine habit as "Brother Bede".
In 1855 at his father's request and expense, Vaughan was sent to Rome for further study under the guidance of the Italian scholar and reformer Angelo Zelli-Jacobuzzi. He remained there for four years. He was ordained priest by Cardinal Patrizi in the basilica of St John Lateran on 9 April 1859.
Vaughan had received minor orders in 1855 and after passing through the various stages he was ordained priest on 9 April 1859. He returned to Downside in August and in 1861 was appointed professor of metaphysics and moral philosophy at Belmont. A year later he was elected prior of the diocesan chapter of Newport and Menevia and superior of Belmont.