| Professor Alan Williams FBA | Year of birth 1927 | Year of death 2005 | Year elected 2002 | Fellowship category UK |
| Professor Arthur Frederick Basil Williams OBE, FBA | Year of birth 1867 | Year of death 1950 | Year elected 1935 | Fellowship category UK |
| Sir Bernard Williams FBA | Year of birth 1929 | Year of death 2003 | Year elected 1971 | Fellowship category UK |
| Sir Glanmor Williams CBE, FBA | Year of birth 1920 | Year of death 2005 | Year elected 1986 | Fellowship category UK |
| Professor Glanville Williams QC, FBA | Year of birth 1911 | Year of death 1997 | Year elected 1957 | Fellowship category UK |
| Sir Harold Williams FBA | Year of birth 1880 | Year of death 1964 | Year elected 1944 | Fellowship category UK |
| Sir Ifor Williams FBA | Year of birth 1881 | Year of death 1965 | Year elected 1938 | Fellowship category UK |
| Professor John Williams FBA | Year of birth 1912 | Year of death 1999 | Year elected 1978 | Fellowship category UK |
| Professor Michael Williams FBA | Year of birth 1935 | Year of death 2009 | Year elected 1989 | Fellowship category UK |
| Mr Philip Williams FBA | Year of birth 1920 | Year of death 1984 | Year elected 1983 | Fellowship category UK |
| Professor Charles Wilson CBE, FBA | Year of birth 1914 | Year of death 1991 | Year elected 1966 | Fellowship category UK |
| Professor Edward Wilson FBA | Year of birth 1906 | Year of death 1977 | Year elected 1964 | Fellowship category UK |
| Professor Frank Percy Wilson FBA | Year of birth 1889 | Year of death 1963 | Year elected 1943 | Fellowship category UK |
| Professor John Wilson CH, FBA | Year of birth 1881 | Year of death 1969 | Year elected 1931 | Fellowship category UK |
| Professor John Cook Wilson FBA | Year of birth 1849 | Year of death 1915 | Year elected 1907 | Fellowship category UK |
| Professor Monica Hunter Wilson FBA | Year of birth 1908 | Year of death 1982 | Year elected 1980 | Fellowship category Corresponding |