| Mr Adrian Sherwin-White FBA | Year of birth 1911 | Year of death 1993 | Year elected 1956 | Fellowship category UK |
| Dr Haakon Shetelig FBA | Year of birth 1877 | Year of death 1955 | Year elected 1938 | Fellowship category Corresponding |
| Professor Peter Shinnie FBA | Year of birth 1915 | Year of death 2007 | Year elected 1999 | Fellowship category Corresponding |
| Professor Eduard Sievers FBA | Year of birth 1850 | Year of death 1932 | Year elected 1909 | Fellowship category Corresponding |
| Mr Robert Silvers Hon FBA | Year of birth 1929 | Year of death 2017 | Year elected 2013 | Fellowship category Honorary |
| Professor Dr Erika Simon FBA | Year of birth 1927 | Year of death 2019 | Year elected 2001 | Fellowship category Corresponding |
| Professor Marcel Simon FBA | Year of birth 1907 | Year of death 1986 | Year elected 1985 | Fellowship category Corresponding |
| Professor Walter Simon CBE, FBA | Year of birth 1893 | Year of death 1981 | Year elected 1956 | Fellowship category UK |
| Professor Alfred Simpson FBA | Year of birth 1931 | Year of death 2011 | Year elected 1983 | Fellowship category UK Emeritus |
| Dr Nagendra Singh FBA | Year of birth 1914 | Year of death 1988 | Year elected 1986 | Fellowship category Corresponding |
| Mr Kenneth Sisam FBA | Year of birth 1887 | Year of death 1971 | Year elected 1941 | Fellowship category UK |
| Mr Theodore Cressy Skeat FBA | Year of birth 1907 | Year of death 2003 | Year elected 1963 | Fellowship category UK |
| Revd Professor Walter William Skeat FBA | Year of birth 1835 | Year of death 1912 | Year elected 1902 | Fellowship category UK |
| Professor Andrew Skinner FBA, FRSE | Year of birth 1935 | Year of death 2011 | Year elected 1993 | Fellowship category UK Emeritus |
| Professor Chris Skinner CBE, FBA | Year of birth 1953 | Year of death 2020 | Year elected 2004 | Fellowship category UK |
| Professor Otto Skutsch Hon FBA | Year of birth 1906 | Year of death 1990 | Year elected 1987 | Fellowship category Honorary |