The Bishop of Grahamstown is the Ordinary of the Diocese of Grahamstown in the Anglican Church of Southern Africa. The Bishop's residence is at Bishopsbourne, Grahamstown.

1. John Armstrong,^[1] D.D. 1853-1856
2. Henry Cotterill,^[1] M.A., D.D. 1856-1871 (Later bishop of Edinburgh)
3. Nathaniel James Merriman,^[1] D.D. 1871-1882
4. Allan Becher Webb,^[1] D.D. 1883-1898 (Later dean of Salisbury, England)
5. Charles Edward Cornish,^[1] D.D. 1899-1915
6. Francis Robinson Phelps,^[2] D.D. 1915-1931 (Later Archbishop of Cape Town)
7. Archibald Howard Cullen,^[2] M.A. 1931-1959
8. Robert Selby Taylor,^[2] M.A., D.D. 1959-1964 (Later archbishop of Cape Town)
9. Gordon Leslie Tindall,^[2] B.A. 1964-1969
10. Bill Bendyshe Burnett,^[2] M.A. L.Th. 1969-1974 (Later archbishop of Cape Town)
11. Kenneth Cyril Oram,^[2] B.A., A.K.C. 1974-1987 (Later assistant bishop of Lichfield)
12. David Patrick Hamilton Russell,^[2] M.A., Ph.D. 1987-2004
13. Thabo Cecil Makgoba,^[2] B.Sc. B.A. (Hons) MEd Ph.D. 2004-2007 (LaterArchbishop of Cape Town)
14. Ebenezer St Mark Ntlali,^[2] Dip.Th. B.A. (Hons) B.Th. 2007–2023

The following were bishops suffragan in the diocese:

• Eric Pike,^[2] P.T.C., Dip.Th. 1989-1993 (Later bishop of Port Elizabeth)
• Anthony Mdletshe,^[2] L.Th., M.Div. 1993-1997 (Later bishop of Zululand)
• Bethlehem Nopece,^[2] Dip.Th. B.Th. M.Th. 1998-2002 (Later bishop of Port Elizabeth)
• Thabo Cecil Makgoba,^[2] B.Sc. B.A. (Hons) MEd.(Psychology) Ph.D. 2002-2004 (afterwards bishop of Grahamstown)