Friedrich IX.

Friedrich IX. is the name of the following people:

• Friedrich IX. (Denmark) , King (1947–1972)
• Friedrich IX. (Hohenzollern) († 1377/1379), called "the old man" or "the black count", Count of Hohenzollern
• Friedrich von Brandenburg (1588–1611) , as Friedrich IX. Margrave of Brandenburg

This is a disambiguation page for differentiating between several terms identified with the same word.