| Author (and author names) | Published between | No. of references | No. of described taxa (valid) |
|---|---|---|---|
| Ross, H. H. | 1971–1973 | 2 | – |
| Ross, K. G. | 1985–2018 | 32 | 1 |
| Rossbach, M. H. | 1983 | 1 | – |
| Rossi de Garcia, E. | 1983 | 1 | 1 |
| Rossi, M. L. | 2009–2011 | 8 | – |
| Rossi, M.L. | 2012 | 1 | – |
| Rössler, W. | 2009–2020 | 3 | – |
| Rosso, E. | 2023 | 1 | – |
| Rosumek, F. B. | 2019–2023 | 2 | – |
| Rosumek, R. B. | – | – | – |
| Röszler, P. | 1935–1951 | 12 | 5 |
| Roth, D. S. | 1994 | 1 | – |
| Rothney, G. A. J. | 1889–1903 | 3 | – |
| Rotramel, G. L. | 1967–1971 | 2 | – |
| Roura-Pascual, N. | 2009 | 1 | – |
| Rouse, E. P. | 1969 | 1 | – |
| Roux, A. | 1989 | 1 | – |
| Roux, J. | 2014 | 1 | – |
| Roy, A. | 1999 | 1 | – |
| Roy, S. | 2020 | 1 | – |
| Roychowdhury, S.; Roy Chowdhury, S. | 1999–2006 | 3 | – |
| Ruangsittichai, J. | 2018 | 2 | 3 |
| Ruano, F.; Ruana, F. | 1992–2007 | 13 | 1 |
| Ruchirani, H. P. G. R. C. | 2011–2014 | 2 | – |
| Rudra, A. | 2018 | 1 | – |
| Rüger, M. | 2003 | 1 | – |
| Rüger, M. H. | 2005 | 1 | – |
| Ruggiero, A. | 1994 | 1 | – |
| Ruíz-Cancino, E. | 2012 | 1 | – |
| Ruiz-Gonzalez, M. X. | 2009 | 1 | – |
| Rüppell, O. | 1997–2001 | 4 | – |
| Russell, J. A. | 2009 | 1 | – |
| Russell, W. E. | 1969 | 1 | – |
| Russo, G. | 1930 | 1 | 2 |
| Rust, J. | 1999–2017 | 3 | 1 |
| Rust, M. K.; Rust, M. | 1984–2013 | 4 | – |
| Rutkowski, T. | 2018 | 1 | – |
| Ruzsky, M.; Ruzsky, M. D. | 1894–1946 | 33 | 55 |
| Ryder Wilkie, K. T. | 2010 | 1 | – |
| Ryu, D.-P. | 1994–1995 | 2 | – |
| Saaristo, M. I. | 1986–1995 | 3 | – |
| Sadasivan, K. | 2017–2022 | 2 | 4 |
| Sadeghi, H. | 2015 | 1 | – |
| Sadil, J.; Sadil, J. V. | 1939–1953 | 13 | 3 |
| Sadowski, V. A. | 2020 | 1 | – |
| Sáenz | – | – | – |
| Sáenz, L. | 2012 | 1 | – |
| Saes, N. B. | 1986 | 1 | – |
| Saewai, J. | 2007 | 1 | – |
| Safariyan, F. | 2018 | 1 | 1 |
| Safford, W. E. | 1922 | 1 | – |
| Sagra, R. de | 1857 | 1 | – |
| Sahanashree, R. | 2021–2024 | 3 | 4 |
| Sahlberg, J. | 1913 | 1 | – |
| Sahni, A. | 2010 | 1 | – |
| Sahoo, B. | 2023–2024 | 2 | 2 |
| Saini, M. S. | 1978–1985 | 12 | – |
| Saito, A. | 2000 | 1 | – |
| Sáiz, F. | 1993 | 1 | – |
| Sakai, H. | 1988–1994 | 3 | – |