Other
- John Maxwell, 4th Lord Maxwell (died 1513), Scottish nobleman and head of the Border family of Maxwell
- John Maxwell (bishop) (died 1647), Scottish prelate, Archbishop of Tuam, Bishop of Ross
- Vice Admiral John Robert Maxwell, British sailor and Governor of The Bahamas
- General Sir John Maxwell (British Army officer) (1859–1929), British Army officer and colonial governor
- John Maxwell (Confederate agent), secret agent during the American Civil War
- John Maxwell (Medal of Honor) (1841–1931), American Medal of Honor recipient
- Sir John Maxwell (police officer) (1882–1968), Chief Constable of Manchester, 1927–1942
- John Hall Maxwell (1812–1866), Scottish agriculturist
- John Preston Maxwell (1871–1961), Presbyterian obstetric missionary to China
- John Rogers Maxwell, Sr. (1846–1910), American railroad executive and yachtsman
- John Maxwell, 8th Lord Maxwell (1553–1593), Scottish Catholic nobleman
- John Maxwell, 9th Lord Maxwell (died 1613), Scottish Catholic nobleman
Read more about this topic: John Maxwell