John Fisher, 1st Baron Fisher (1841–1920) was a British Admiral of the Fleet. Admiral Fisher may also refer to:
Charles W. Fisher Jr. (1880–1971), U.S. Navy rear admiral Douglas Fisher (Royal Navy officer) (1890–1963), British Royal Navy admiral Frederic Fisher (1851–1943), British Royal Navy admiral William Fisher (Royal Navy officer, born 1780) (1780–1852), British Royal Navy rear admiral William Blake Fisher (1853–1926), British Royal Navy admiral William Wordsworth Fisher (1875–1937), British Royal Navy admiral
See also Olfert Fas Fischer (1700–1761), Royal Dano-Norwegian Navy vice admiral Olfert Fischer (1747–1829), Royal Dano-Norwegian Navy vice admiral