S
- Dinko Šakić (1921–2008), a convicted Croatian war criminal and commander of the Jasenovac concentration camp during World War II.
- Vladimir Šantić (born 1958), Bosnian Croat sentenced to 25, changed to 18 years following appeal
- Fritz Sauckel (1894–1946), German Labor Plenipotentiary official
- Anthony Sawoniuk (1921–2005), Belarusian collaborator
- Hjalmar Schacht (1877–1970), German Reichsbank official
- Gustav Adolf Scheel (1907–1979), German physician and Nazi deportation officer
- Walter Schellenberg (died 1952), German RSHA official
- Baldur von Schirach (1907–1974), German Vienna Reichsstatthalter
- Franz Schlegelberger (1876–1970), German State Secretary in the Reich Ministry of Justice (RMJ) and later Justice Minister
- Heinrich Schwarz (1906–1947), German administrator of the Auschwitz III Monowitz concentration camp
- Siegfried Seidl (1911–1947), German administrator of the Theresienstadt concentration camp
- Artur Seyss-Inquart (1892–1946), Austrian government official, collaborator and High Commissioner of the Netherlands
- Mamoru Shigemitsu (1887–1957), Japanese foreign minister
- Wolfram Sievers (died 1948), German Ahnenerbe official
- Duško Sikirica (born 1964), Bosnian Serb, sentenced to 15 years for Keraterm camp
- Blagoje Simić (born 1960), Bosnian Serb sentenced to 17 years for Bosanski Šamac
- Milan Šimić (born 1960), Bosnian Serb sentenced to 5 years
- Veselin Šljivančanin, Serb Colonel convicted to 5 years for the Vukovar massacre
- Albert Speer (1905–1981), German armament and munitions minister
- Franz Walter Stahlecker (died 1942), German Foreign Office official
- Milomir Stakić (born 1962), Bosnian Serb sentenced to life imprisonment for war crimes in Prijedor and nearby concentration camps
- Franz Stangl (1908–1971) German SS officer and administrator of the Sobibór and of the Treblinka concentration camps.
- Otto Steinbrinck (1888–1949), German industrialist and member of the SS
- Julius Streicher (1885–1946), German journalist and editor of the Der Stürmer
- Jürgen Stroop (died 1951), German SS and Police leader in Warsaw
- Pavle Strugar (born 1933), Serb general in the Siege of Dubrovnik. Sentenced to 8 years
- Wilhelm Stuckart (died 1953), German Interior Ministry official
- Otto von Stulpnagel (died 1948), German military commander of Nazi-occupied France
- Ferenc Szálasi (1897–1946), Hungarian head of state
- Dome Sztojay (died 1946), Hungarian prime minister
Read more about this topic: List Of Convicted War Criminals