Anthony I

Anthony I or Antony I may refer to:


 * Anthony I of Constantinople, Archbishop of Constantinople and Ecumenical Patriarch from 821 to 837
 * Anthony I, Count of Ligny (1450–1519)
 * Anthony I, Lord of Monaco (died 1358)
 * Antonio I, Prince of Monaco (1661–1731)
 * Anthony I, Serbian Patriarch, Archbishop of Peć and Serbian Patriarch from 1571 to 1574
 * Anthony I of Portugal (1531–1595), King of Portugal in 1580
 * Anthony I, Eritrean Patriarch (1929–2022), Archbishop of Asmara and Eritrean Patriarch from 2004 to 2007
 * Anthony I, Count of Oldenburg (1505–1573)