| Author (and author names) | Published between | No. of references | No. of described taxa (valid) |
|---|---|---|---|
| Sipos, B. | 2006 | 1 | – |
| Sirén, J. | 2023 | 1 | – |
| Sitthicharoenchai, D. | 2006 | 1 | – |
| Sixt, M. | 2009 | 1 | – |
| Sjöstedt, Y. | 1907–1908 | 2 | – |
| Schkaff, B.; Škaff, B. | 1923–1925 | 4 | – |
| Skaife, S. H. | 1962 | 1 | – |
| Skinner, G. J. | 1987–1996 | 2 | – |
| Skott, C. | 1970–1980 | 4 | – |
| Skottsberg, C. | 1922 | 1 | – |
| Skoupy, V. | 1989 | 1 | – |
| Skvarla, M. J. | 2024 | 1 | – |
| Skwarra, E. | 1926–1934 | 6 | – |
| Slater, S. C. | 2011 | 1 | – |
| Sledge, M. F. | 1996 | 1 | – |
| Slingsby, P. | 1984 | 1 | – |
| Slipinska, E. | 2012 | 1 | 8 |
| Smith-Herron, A. | 2016 | 1 | – |
| Smith, A. M. | 1989–1990 | 2 | – |
| Smith, C. D. | 2010–2011 | 4 | – |
| Smith, C. R. | 2008–2011 | 5 | – |
| Smith, D. J. | 2009 | 1 | 6 |
| Smith, D. R. | 1972–2002 | 10 | 2 |
| Smith, E. L. | 1970 | 1 | – |
| Smith, E. S. C. | 2001 | 1 | – |
| Smith, F. | 1851–1879 | 55 | 499 |
| Smith, Fa. | 1941–1942 | 3 | – |
| Smith, H. M. | 1942–1968 | 2 | – |
| Smith, I. C. | 1950–1954 | 5 | – |
| Smith, J. B. | 1910 | 1 | – |
| Smith, J. H. | 1944 | 1 | – |
| Smith, M. A. | 2005–2015 | 5 | – |
| Smith, M. R. | 1916–1969 | 138 | 62 |
| Smith, M. R. B. | 1994 | 1 | – |
| Smith, R. G. | 1973 | 1 | – |
| Smith, W. C. | 1996 | 1 | – |
| Smitz, N. | 2021 | 1 | – |
| Snegovaya, N. | 2022 | 1 | 1 |
| Snelling, G. C. | 2007–2009 | 4 | 3 |
| Snelling, R. R. | 1963–2022 | 80 | 85 |
| Snodgrass, R. E. | 1910–1941 | 2 | – |
| Šnoflák, J. | 1944 | 1 | – |
| Snyder, L. E. | 1991–1993 | 3 | – |
| Snyder, T. E. | 1961 | 1 | – |
| Soares, I. M. F. | 2007–2010 | 2 | 1 |
| Soares, M. A. S. | 1990 | 1 | – |
| Soares, N. C. | 2006 | 1 | – |
| Soares, P. A. O. | 1997 | 1 | – |
| Sobrinho, T. G. | 2003 | 1 | – |
| Sochacki, S. | 2011 | 1 | – |
| Société de Naturalistes et d'Agriculteurs | 1804–1818 | 4 | – |
| Soderlund, V. | 1980 | 1 | – |
| Sogin, M. L. | 1994 | 1 | – |
| Soh, E. J. Y. | 2022 | 1 | – |
| Sokh, H. | 2021–2024 | 4 | – |
| Sokolov, V. E. | 1989 | 1 | – |
| Sokolowski, A. | 1975–1987 | 5 | – |
| Sola, F. J. | 2011 | 1 | 1 |
| Solar, R. | 2015 | 1 | – |
| Soler, J. J. | 2000 | 1 | – |