Waldemar IV.
Waldemar IV. Is the name of the following people:
- Waldemar IV. (Schleswig) (around 1265–1312), Duke of Schleswig
- Waldemar IV. (Denmark) ( Atterdag ; around 1321–1375), King of Denmark, protagonist of the legend of the wild eternal hunter of Oldemorstoft
- Waldemar IV. (Anhalt) , Prince of Anhalt