John Buxton Marsden (1803 – 16 June 1870) was an English cleric, known as a historical writer and editor.
He was admitted sizar of St John's College, Cambridge, on 10 April 1823; and graduated B.A.
From 1833 to 1844 Marsden held the rectory of Lower Tooting, Surrey, during the minority of his successor, R. W. Greaves, and from 1844 to 1851 he was vicar of Great Missenden, Buckinghamshire.
At a meeting of the clergy at Aylesbury on 7 December 1847 to protest against the appointment of Renn Dickson Hampden to the see of Hereford, he moved an amendment, and spoke of Hampden's treatment as unfair treatment.
Edward Dewdney, A Treatise on the special Providence of God, 1848, and edited, with preface and notes, Jules Simon's Natural Religion, 1857.