| Author (and author names) | Published between | No. of references | No. of described taxa (valid) |
|---|---|---|---|
| Kraszewska, M. | 1983 | 1 | – |
| Kratochvíl, J. | 1936–1949 | 16 | 4 |
| Kraus, F. B. | 2013–2015 | 2 | – |
| Krausse, A. H.; Krausse, A. | 1910–1929 | 18 | 3 |
| Kravchenko, V. D. | 2016 | 1 | – |
| Krejca, J. K. | 2009 | 1 | – |
| Kremer, G. | 1982–1986 | 5 | – |
| Krenn, H. W. | 2019 | 1 | – |
| Krieger, M. J. B. | 1997–2007 | 7 | – |
| Kripakaran, M. | 2017–2022 | 2 | 4 |
| Krishna Ayyar, P. N. | 1937 | 1 | – |
| Krogh, A. | 2012 | 1 | – |
| Krogmann, L. | 2011–2017 | 3 | – |
| Krohne, G. | 1996 | 1 | – |
| Kröll, J. | 2023 | 1 | – |
| Krombein, K. V. | 1951–1979 | 6 | – |
| Kronauer, D. J. | 2014 | 1 | – |
| Kronauer, D. J. C. | 2003–2024 | 8 | 1 |
| Kroyer, H. N. | 1846 | 1 | – |
| Kruger, F. J. | 1992 | 1 | – |
| Krüger, T. | 1996 | 1 | – |
| Krutzsch, P. H. | 1990–1994 | 3 | – |
| Krynicki, V. E. | 2013 | 1 | – |
| Krzyszofiak, L. | 2011 | 1 | – |
| Krzysztofiak, A. | 1989–2011 | 2 | – |
| Krzysztofiak, L. | 1981–2001 | 5 | – |
| Kubik, E. | 2012 | 1 | – |
| Kuboki, Y. | 2009 | 1 | – |
| Kubota, H. | 2019 | 1 | – |
| Kubota, M. | 1966–2011 | 38 | 3 |
| Kubota, S. | 1988–2014 | 9 | 8 |
| Kück, P. | 2010–2011 | 2 | – |
| Kugler, C. | 1977–1997 | 18 | 22 |
| Kugler, J. | 1981–2007 | 7 | 8 |
| Kuhbier, H. | 1984 | 1 | – |
| Kühn-Bühlmann, S. | 2006 | 1 | – |
| Kuhn, A. | 2020–2021 | 2 | – |
| Kühnholz, S. | 1993 | 1 | – |
| Kula, E. | 1985 | 1 | – |
| Kula, R. R. | 2017 | 1 | – |
| Kulicka, R. | 1990 | 1 | – |
| Kulmatycki, W. | 1920–1922 | 3 | – |
| Kulmuni, J. | 2010–2023 | 2 | – |
| Kumar, R. | 1972–2013 | 9 | 19 |
| Kumar, S. | 2009 | 1 | – |
| Kumbkarni, C. G. | 1965 | 1 | – |
| Kume, S. | 1914 | 1 | – |
| Kümmerli, R. | 2007 | 1 | – |
| Kundu, B. G. | 1999–2006 | 4 | 1 |
| Kunzmann, N. | 2005 | 1 | – |
| Kupiec, B. M. | 1975 | 1 | – |
| Kupyanskaya, A. N.; Kupianskaya, A. N. | 1980–2000 | 15 | 3 |
| Kurane, S. | 2015 | 1 | 1 |
| Kuranishi, R. B. | 2000 | 1 | – |
| Kurian, C. | 1955 | 1 | – |
| Kuribayashi, S. | 2002–2003 | 2 | – |
| Kuroiwa, T. | 1926 | 1 | – |
| Kurozumi, T. | 1994 | 1 | – |
| Kürschner, I. | 1964–1971 | 4 | – |
| Kurushima, H. | 2015 | 1 | 1 |