SMS Kaiser has been the name of two ships of the German Imperial Navy:
- SMS Kaiser (1874), a Kaiser-class ironclad
- SMS Kaiser (1911), a Kaiser-class battleship which served through World War I
- SMS Kaiser (1905), a fleet auxiliary converted into a minelayer during World War I
Additionally, a number of Imperial Navy vessels were given names of specific kaisers:
- SMS Kaiser Barbarossa, a Kaiser Friedrich III-class battleship, launched 1900
- SMS Kaiser Friedrich III, a Kaiser Friedrich III-class battleship, launched 1896
- SMS Kaiser Karl der Grosse, a Kaiser Friedrich III-class battleship, launched 1899
- SMS Kaiser Wilhelm II, a Kaiser Friedrich III-class battleship, launched 1897
- SMS Kaiser Wilhelm der Grosse, a Kaiser Friedrich III-class battleship, launched 1899
Two ships have been named Kaiserin:
- SMS Kaiserin Augusta: a unique protected cruiser, launched 1892
- SMS Kaiserin, a Kaiser-class battleship, launched 1911
SMS Kaiser was the name of a ship of the Austro-Hungarian Navy:
- SMS Kaiser (1858), the last wooden ship of the line of the Austro-Hungarian Navy.
This article includes a list of ships with the same or similar names. If an internal link for a specific ship led you here, you may wish to change the link to point directly to the intended ship article, if one exists.