Antipope John may refer to:
- Antipope John VIII (844), in opposition to Pope Sergius II
- Antipope John XVI (997–998), in opposition to Pope Gregory V
- Antipope John XXIII (1410–1415), in opposition to Pope Gregory XII
Famous quotes containing the word john:
“Take heed of enemies reconciled, and of meat twice boiled.”
—Collected in John Ray, English Proverbs. English proverb (1670)