Admiral Montagu may refer to:
Edward Montagu, 1st Earl of Sandwich (1625–1672), British Royal Navy admiral George Montagu (Royal Navy officer) (1750–1829), British Royal Navy admiral John Montagu (Royal Navy officer) (1719–1795), British Royal Navy admiral Robert Montagu (Royal Navy officer) (1763–1830), British Royal Navy admiral Simon Montagu, 1st Baron Montagu (died 1316), English Admiral of the Fleet Victor Montagu (Royal Navy officer) (1841–1915), British Royal Navy rear admiral William Augustus Montagu (1785–1852), British Royal Navy vice admiral