Marcus Beresford may refer to:
- Marcus Beresford, 1st Earl of Tyrone (1694–1763), Irish MP for Coleraine
- Marcus Beresford (1764–1797), Irish MP for Dungarvan
- Marcus Beresford (1764–1803), Irish MP for St Canice and Swords
- Marcus Beresford (1800–1876), British politician, MP for Northallerton 1824–1826, Berwick-upon-Tweed 1826–1832
- Marcus Beresford (bishop) (1801–1885) Archbishop of Armagh and Primate of All Ireland.
- Marcus Beresford (1818–1890), Conservative politician, MP for Southwark
- Lord Marcus Beresford (1848–1922), equerry and racing manager