Waldemar I.
Waldemar I. is the name of the following people:
- Waldemar I (Denmark) ( the Great ; 1131–1182), Duke of Schleswig and King of Denmark
- Waldemar (Sweden) (1243–1302), King of Sweden
- Waldemar I (Anhalt) , Prince of Anhalt, see Askanier
Waldemar I. is the name of the following people: