Admiral Walker (1898–2001) was an American Negro league pitcher. Admiral Walker may also refer to:

• Alasdair Walker (1956–2019), British Royal Navy surgeon vice admiral
• Arthur Horace Walker (1881–1947), British Royal Navy rear admiral
• Asa Walker (1845–1916), U.S. Navy rear admiral
• Baldwin Wake Walker (1802–1876), British Royal Navy admiral
• Frank R. Walker (1899–1976), U.S. Navy rear admiral
• Harold Walker (Royal Navy officer) (1891–1975), British Royal Navy admiral
• James Walker (Royal Navy officer) (1764–1831), British Royal Navy rear admiral
• John Grimes Walker (1835–1907), U.S. Navy rear admiral
• Robyn Walker (born 1959), Royal Australian Navy rear admiral
• Thomas Walker (naval officer) (1916–2003), U.S. Navy vice admiral

• Algernon Walker-Heneage-Vivian (1871–1952), British Royal Navy admiral
• Frederic Wake-Walker (1888–1945), British Royal Navy admiral
• General Walker (disambiguation)