SS Scharnhorst may refer to one of the following passenger steamers for North German Lloyd:

• {{SS|Scharnhorst|1904}}, in service from 1904–1919; given to France as war reparations in 1919
• {{SS|Scharnhorst|1934}}, in service from 1934–1939; trapped at Kobe, Japan, in 1939; sold to Japanese in 1942 and converted into {{ship|Japanese aircraft carrier|Shin'yō}}; sunk by {{USS|Spadefish|SS-411|6}} in 1944

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