Christopher I

• Christopher I of Armenia, the Catholicos of Armenia 539 to 545
• Patriarch Christopher I of Alexandria, ruled in 817–841
• Christopher I of Denmark, King of Denmark from 1252 to 1259
• Christopher I, [Margrave of Baden-Baden], Margrave of Baden-Baden from 1475 to 1515
• Christopher I, Burgrave and Count of Dohna-Schlodien