General O'Neil

General O'Neil or O'Neill may refer to:

• Archie E. O'Neil (1905–1986), U.S. Marine Corps brigadier general
• David F. O'Neill (1904–1963), U.S. Marine Corps major general
• Edward J. O'Neill (general) (1902–1979), U.S. Army lieutenant general
• Jack O'Neill fictional U.S. Air Force lieutenant general in Stargate media
• James Hugh O'Neill (1892–1972), U.S. Army brigadier general
• John E. O'Neil IV (fl. 1980s–2020s), U.S. Army brigadier general
• Joseph P. O'Neil (1863–1938), U.S. Army brigadier general
• Malcolm Ross O'Neill (born 1940), U.S. Army lieutenant general
• Mark J. O'Neil (born 1964), U.S. Army major general
• Owen Roe O'Neill (c. 1585–1649), Ulster Army general
• Ralph Ambrose O'Neill (1896–1980), Mexican American Air Force brigadier general