Michael Hobart Seymour (1800–1874) was an Anglo-Irish Protestant clergyman and religious controversialist.
He was born on 29 September 1800, the sixth son of John Crossley Seymour, vicar of Caherelly (d. 19 May 1831), who married in January 1789 Catherine, eldest daughter and coheiress of Rev.
He was admitted ad eundem at Oxford on 2 June 1836, and comitatis causa on 26 October 1865.
In January 1844 Seymour married, at Walcot church, Bath, Maria, only daughter of General Thomas of the East India Company's service, and widow of Baron Brown-Mill (George Gavin Browne Mill), physician to Louis XVIII.
Seymour contributed to newspapers, published pamphlets, and lectured against the Roman Catholic Church.
He brought out in 1838 a new edition, with five appendices, of John Foxe's Acts and Monuments of the Church.
A lecture on ‘Nunneries,’ issued in 1852, involved him in a controversy with Cardinal Nicholas Wiseman, who published a reply.