John Draper (disambiguation) explained

John Draper may refer to:

• John Draper (1943–), American computer hacker and phone phreaker who used the pseudonym "Captain Crunch"
• John Christopher Draper (1835–1885), American chemist, a son of John William Draper and brother of Henry Draper
• John William Draper (1811–1882), American (English-born) scientist, philosopher, physician, chemist, historian and photographer
• John Draper (MP for New Shoreham), 1413–1416, MP for New Shoreham (UK Parliament constituency)
• John Draper (MP for Rochester), in 1420, MP for Rochester (UK Parliament constituency)
• John Draper (motorcyclist) (1939–2002), English professional motorcycle racer