Dannebrog (until the mid-20th century often spelled Danebrog) may refer to:

Flags and orders

* The national Flag of Denmark * Order of the Dannebrog ( da, Dannebrogordenen, links=no), a Royal Danish decoration

Places

* Dannebrog Island, an island in Greenland * Dannebrog Islands, an island group in Antarctica * Dannebrog, Nebraska, a village in Nebraska, United States

Ships

* Danish ironclad ''Dannebrog'', a frigate of the Royal Danish Navy, also known as the HDMS ''Dannebrog'' (1850) * HDMS ''Dannebroge'' (1692) (The name is spelled Dannebrog in some references) * HDMY ''Dannebrog'' (1879), the first royal Danish side-wheel paddle steam-yacht, named after the flag * HDMY ''Dannebrog'' (A540), a Danish royal yacht, named after the flag {{disambiguation, geo, ship