S
- S113: Großes Torpedoboot 1916 class, launched 1918
- Saar: Mosel class (Type 402) tender
- Saarburg: Lüneburg class (Type 701) replenishment ship
- Sachsen: 7,800 ton Sachsen class armored ship, launched 1877
- Sachsen: 29,000 ton Bayern class battleship, not completed
- Sachsen: Sachsen class (Type 124) frigate
- Salm: Landing craft, decommissioned
- Scharnhorst: 11,600 ton Scharnhorst class armored cruiser, launched 1906
- Scharnhorst: 35,000 ton Scharnhorst class battleship, launched 1936
- Scharnhorst: Black Swan class frigate, former Royal Navy HMS Mermaid, commissioned 1959 to 1968
- Scheer: Type 138 frigate, commissioned 1959 to 1967
- Schlei: Barbe class (Type 520) utility landing craft, used as transport ships
- Schlesien: 13,000 ton Deutschland class battleship, launched 1906
- Schleswig: Lindau class (Type 320) minesweeper, commissioned 1958 to 1979, upgraded to Type 351, recommissioned 1989 to 2000
- Schleswig-Holstein: 13,000 ton Deutschland class battleship, launched 1906
- Schleswig-Holstein: Hamburg class (Type 101A) destroyer, decommissioned
- Schleswig-Holstein: Brandenburg class (Type 123) frigate
- Schwaben: 12,000 ton Wittelsbach class battleship, launched 1901
- Schwarzwald: Schwarzwald class (Type 706) replenishment ship
- Seeadler: 1,650 ton Bussard class light cruiser, launched 1892
- Seeadler: Seeadler (Type 141) fast attack craft, commissioned 1958 to 1976
- Seeadler: Albatross class (Type 143) fast attack craft, decommissioned
- Seydlitz: 25,000 ton unique battlecruiser, launched 1912
- Seydlitz: 14,000 ton modified Admiral Hipper class heavy cruiser, selected while under construction for conversion to an aircraft carrier, never completed
- Siegburg: Ensdorf class (Type 352) minesweeper
- Siegen: Vegesack class (Type 321) minesweeper, commissioned 1960 to 1963
- Siegfried: 3,700 ton Siegfried class coastal armored ship, launched 1889
- Silbermöve: Schnellboot fast attack craft, commissioned 1956—1967
- Sirius: Krebs class (Type 340) minesweeper, commissioned 1961—1990)
- Sovietskaya Ukraina: Captured from the Soviet Union under construction, not completed
- Sperber: Seeadler (Type 141) fast attack craft, commissioned 1959 to 1976
- Sperber: Albatross class (Type 143) fast attack craft, decommissioned
- Spessart: Rhön class (Type 704) tanker
- Spica: Krebs class (Type 340) minesweeper, commissioned 1961—1992)
- Spiekeroog: Wangerooge class (Type 722) tug
- Stettin: Königsberg class light cruiser, launched 1907
- Stier HSK 6: 11,000 ton unique auxiliary merchant cruiser
- Stör: Barbe class (Type 520) utility landing craft, used as transport ships (decommissioned)
- Storch: Jaguar (Type 140) fast attack craft, commissioned 1960—1974
- Storch: Tiger class (Type 148) fast attack craft, decommissioned
- Straßburg: Magdeburg class light cruiser, launched 1911
- Strahl: Vosper (Type 153) fast attack craft, commissioned 1962 to 1967
- Stralsund: Magdeburg class light cruiser, launched 1911
- Sturmmöve: Schnellboot fast attack craft, commissioned 1956—1967
- Stuttgart: Königsberg class light cruiser, launched 1906
- Sulzbach-Rosenberg: Frankenthal class (Type 332) minehunter
Read more about this topic: List Of Naval Ships Of Germany