List of Genera
- Shikokuobius Shinohara, 1982
- Shosobius Chamberlin & Wang, 1952
- Sigibius Chamberlin, 1913
- Simobius Chamberlin, 1922
- Simoleptus Chamberlin, 1941
- Simophilus Silvestri, 1896
- Simoporus Chamberlin & Mulaik, 1940
- Sogodes Chamberlin, 1921
- Sogolabis Chamberlin, 1920
- Sogona Chamberlin, 1912
- Sogophagus Chamberlin, 1912
- Sonibius Chamberlin, 1912
- Soniphilus Chamberlin, 1912
- Sotimpius Chamberlin, 1912
- Sozibius Chamberlin, 1912
- Speleopsobius Shear, 2018
- Sphendononema Verhoeff, 1904
- Steneurytion Attems, 1909
- Stenomera Rafinesque, 1820
- Stenophilus Chamberlin, 1946
- Stenorya Crabill, 1968
- Stenotaenia C.L. Koch, 1847
- Sterropristes Attems, 1934
- Stigmatogaster Latzel, 1880
- Straberax Crabill, 1969
