J-L
List of all Honorary Fellows with surnames J-L
| Name | 
 | Place of residence | Subject | Year of election | 
| Jack, Professor J. J. B. | (1936–) | Oxford, England | Cellular Neuroscience | 1998 | 
| Jaggar, Dr T. A. | (1871–1953) | Hawaii | Volcanology | 1927 | 
| Jeans, Sir James | (1877–1946) | Cambridge | Physics, astronomy | 1929 | 
| Jeffreys, Sir Harold | (1891–1989) | Cambridge | Astronomy, geophysics | 1943 | 
| Jenness, Dr D. | (1886–1969) | Ottawa | Anthropology | 1941 | 
| Jones, Sir Vaughan F. R. | (1952–2020) | Berkeley | Mathematics | 1991 | 
| Kawachi, Professor Ichiro | Harvard, Massachusetts | Epidemiology | 2018 | |
| Kelvin, First Baron (see Thomson, Sir Wm) | 
 | 
 | 
 | 
 | 
| Keith, Sir Arthur | (1866–1955) | London | Anthropology | 1939 | 
| Kelly, Professor M. J. | (1949–2018**) | Guildford, England | Physics and Electronics | 1999 | 
| Kellog, Dr C. E. | (1902–1979) | Washington | Pedology | 1968 | 
| Kennett, Professor J. P. | (1940–) | Santa Barbara | Palaeoceanography | 1991 | 
| Kent, Professor S. B. H. | (1945–) | Chicago/San Francisco, USA | Chemistry | 2006 | 
| Klotz, Professor O. J. | (1852–1923) | Ottawa | Astronomy, geodesy | 1903 | 
| Kobayashi, Dr T. | (1901–1996) | Tokyo | Palaeontology | 1973 | 
| Langley, S. P. | (1834–1906) | Washington | Astronomy, physics | 1896 | 
| Larner, Professor W. | (1963–) | Bristol | Geography | 2009 (*2016) | 
| Letham, Dr D. S. | (1926–) | Canberra | Plant physiology | 1985 | 
| Li, Lairong (Li Lai-Yung), Professor | (1910–1993) | Fukien | Pomology | 1979 | 
| Lindsay, Dr W. L. | (1829–1880) | Perth | Natural history, lichenology | 1871 | 
| Lively, Professor C. M. | (1954–) | Indiana, USA | Biology | 2007 | 
| Liversidge, Professor A. | (1847–1927) | Sydney | Chemistry, mineralogy | 1890 | 
| Lotsy, Dr J. P. | (1867–1931) | Netherlands | Plant genetics, evolution | 1927 | 
| Lubbock, Sir John (see Lord Avebury) | 
 | 
 | 
 | 
 | 
| Lydekker, R. | (1849–1915) | India; London | Geology, palaeontology | 1896 | 
| Lyell, Sir Charles | (1797–1875) | Scotland; London | Geology | 1873 | 
*transferred to Fellowship (year of transfer)
** year of resignation
