John I (bishop of Rochester)
John was a medieval Bishop of Rochester.
John was a nephew of Ralph d'Escures Archbishop of Canterbury, who he served as a clerk. He was appointed Archdeacon of Canterbury between 27 June 1115 and 16 September 1115.
John was elected to the See of Rochester before 12 April 1125 and consecrated on 24 May 1125. He died on 20 June 1137.