SS, a Japanese comic 2000-2003; SS Entertainment, a Korean entertainment company; S.S., for Sosthenes Smith, H. G. Wells pseudonym for story A Vision of the Past; SS, the production code for the 1968 Doctor Who serial The Wheel in Space; Language. Ss (digraph) used in Pinyin; ß or ss, a German-language ligature; SS switch-reference in linguistics

Reichsführer-SS (German: [ˈʁaɪçsˌfyːʁɐ ˌʔɛsˈʔɛs] (), lit. 'Reich Leader-SS') was a special title and rank that existed between the years of 1925 and 1945 for the commander of the Schutzstaffel (SS). Reichsführer-SS was a title from 1925 to 1933, and from 1934 to 1945 it was the highest rank of the SS.The longest-serving and most noteworthy office holder was Heinrich Himmler