John Ketton (died 1316) was a medieval Bishop of Ely.

Ketton was elected to Ely on 2 March 1310 and consecrated on 6 September 1310. He died on 14 May 1316.^[1]

• Fryde, E. B.; Greenway, D. E.; Porter, S.; Roy, I. (1996). Handbook of British Chronology (Third revised ed.). Cambridge, UK: Cambridge University Press. ISBN 0-521-56350-X.