Gloucester College, Oxford, was a Benedictine institution of the University of Oxford in Oxford, England, from the late 13th century until the Dissolution of the monasteries in the 16th century. It was never a typical college of the University, in that there was an internal division in the college, by staircase units, into parts where the monasteries sending monks had effective authority. The overall head was a Prior. It later became Gloucester Hall, an academic hall and annexe of St John's College and was again refounded in 1714 as Worcester College by Sir Thomas Cookes.