| Author (and author names) | Published between | No. of references | No. of described taxa (valid) |
|---|---|---|---|
| Kirby, W. F. | 1880–1896 | 3 | 3 |
| Kirchner, M. | 2023 | 1 | – |
| Kirchner, W. | 1959 | 1 | – |
| Kirk-Spriggs, A. H. | 2000 | 1 | – |
| Kirsan, J. R. | 2017–2019 | 3 | – |
| Kirschner, P. | 2023 | 1 | – |
| Kiseleva, E. F. | 1923–1925 | 2 | – |
| Kiss, K. | 2006 | 1 | – |
| Kistner, D. H. | 1972–1992 | 4 | – |
| Kitade, O. | 1999 | 1 | – |
| Kitahiro, S. | 2010 | 1 | – |
| Kitazawa, R. | 2024 | 1 | 2 |
| Kitazawa, Y. | 1984 | 1 | – |
| Kitching, R. L. | 1998–2006 | 2 | – |
| Kiyani, H. | 2021 | 1 | 1 |
| Kjar, D. S. | 2007 | 1 | – |
| Kjer, K. M. | 2006–2017 | 2 | – |
| Klarica, J. | 2011 | 1 | – |
| Kleeberg, I. | 2014 | 1 | 1 |
| Klein, M. | 1998 | 1 | – |
| Klein, R. W. | 1987–1997 | 4 | – |
| Kleineidam, C. | 2000 | 1 | – |
| Kleineidam, C. J. | 2009 | 1 | – |
| Klemm, W. | 1967–1976 | 2 | 1 |
| Klimes, P. | 2014 | 1 | 4 |
| Klimeš, P. | 2022 | 2 | 2 |
| Klimetzek, D. | 1970–1992 | 7 | – |
| Klimov, P. | 2015 | 1 | – |
| Klingenberg, C. | 2005–2013 | 6 | 3 |
| Klinkicht, M. | 1990 | 1 | – |
| Klitzke, C. | 1995 | 1 | – |
| Kloft, E. S. | 1973 | 1 | – |
| Kloft, W. | 1961 | 1 | – |
| Kloft, W. J. | 1973–1980 | 2 | – |
| Klopfstein, S. | 2017 | 1 | – |
| Klotz, J. H.; Klotz, J. | 1995–2013 | 5 | – |
| Klotz, S. A. | 1999 | 1 | – |
| Klug, F. | 1824 | 1 | 4 |
| Klump, B. | 1988 | 1 | – |
| Klunk, C. L. | 2021–2023 | 2 | – |
| Knaden, M. | 2005–2012 | 2 | – |
| Knauer, F. | 1906 | 1 | – |
| Knechtel, W. K. | 1956–1962 | 3 | – |
| Kneitz, G. | 1962–1998 | 8 | – |
| Knight, R. L. | 1990 | 1 | – |
| Knöllinger, K. | 2024 | 1 | – |
| Knor, S. | 2014 | 1 | 1 |
| Knowles, L. L. | 2015 | 1 | – |
| Knowlton, G. F. | 1939–1970 | 2 | – |
| Knox, R. B. | 1984–1986 | 3 | – |
| Knudtson, B. K. | 1978 | 1 | – |
| Ko, J.-H. | 1985 | 1 | – |
| Kobayashi, K. | 1984–2012 | 4 | – |
| Kobel-Lamparski, A. | 1990 | 1 | – |
| Koch, E. B. D. | 2021 | 1 | – |
| Koehler, P. | 1994 | 1 | – |
| Koehler, W. | 1951–1958 | 2 | – |
| Koen, J. H. | 1988 | 1 | – |
| Kofler, A. | 1978–1995 | 3 | – |
| Kogure, T. | 1959 | 1 | – |