Christian I (February 1426 – 21 May 1481) is a Danish monarch, king of Denmark (1448–1481), Norway (1450–1481) and Sweden (1457–1464), under the Kalmar Union.

In Sweden his short tenure as monarch is preceded by regent Jöns Bengtsson Oxenstierna and Erik Axelsson Tott and succeeded by regent Kettil Karlsson Vasa.

Also Duke of Schleswig and Holstein, 1460–81.