- The Kingdom of Denmark (up to 1396)
- The Kingdom of Denmark (1536 to present)
- The Kingdom of Denmark and Norway (1536-1814)
Gorm the Old was the first trustworthy Danish monarch. All reigns before him are dubious. Denmark has one of the longest running unbroken lines of succession in the world, second only to that of the Japanese emperors.
Danish name forms are given in parenthesis.
List of Dubious Danish Kings
''Note: Above list of dubious kings affected the numbering of subsequent Danish monarchs:
The continuous list of Danish monarchs
See also: List of Icelandic rulers, List of Norwegian monarchs, List of Swedish monarchs, lists of incumbents