Was ist des Deutschen Tochterland () is a German colonialist song by the German teacher Emil Sembritzki (1911). Its melody comes from the more well-known German nationalist song Was ist des Deutschen Vaterland.
The original melody came from Was ist des Deutschen Vaterland<nowiki/>'s 1825 melody, which was more popular than the original 1814 melody.
The lyrics were composed in 1911 by Emil Sembritzki, who was a German teacher in the German colony of Kamerun. He was also the writer of multiple books on German colonies, such as Kamerun and Owanama.
In the song, the concept of the original song that gradually expands the list of named places (which form the German Fatherland) is kept, but is adapted to various German colonies. A notable exception to the list is Kiautschou, which is not listed in the song.