Archibald Howard Cullen (24 September 1887 – 16 June 1968) was the sixth Bishop of Grahamstown.

He was baptized in the Parish of St Jude, Peckham, London on 20 November 1887.

[2] Cullen was educated at Simon Langton Grammar School for Boys.

[9] When peace returned he was vicar of Umzinto in the Diocese of Natal,[10] he later became chaplain and lecturer of Wells Theological College and then Vice-Principal of Leeds Clergy School.

[10] In 1926 he became warden of St Paul's Theological College, Grahamstown until his appointment to the episcopate[11] in 1931.