There are 57 mathematicians whose last name begin with RIL.
| Riles, James | University of London | 1967 |
| Riley, Adrian | University of Sheffield | 1983 |
| Riley, Anthony | University of Leeds | 2014 |
| Riley, Bruce | Montana State University | 1982 |
| Riley, Caroline | University of Manchester | 2006 |
| Riley, Charles | Iowa State University | 1972 |
| Riley, Chris | The Johns Hopkins University | |
| Riley, David | The University of Iowa | 1978 |
| Riley, David | University of Hull | 1972 |
| Riley, David | University of Alberta | 1991 |
| Riley, Derek | Vanderbilt University | 2009 |
| Riley, Donald | Purdue University | 1976 |
| Riley, Douglas | University of Kentucky | 1999 |
| Riley, Emily | University of Cambridge | 2017 |
| Riley, Geoffrey | University of Warwick | 1978 |
| Riley, George | Georgia Institute of Technology | 2001 |
| Riley, George | Clark University | 2002 |
| Riley, Heather | University of Liverpool | 2015 |
| Riley, James | Wayne State University | 1978 |
| Riley, James | The Johns Hopkins University | 1971 |
| Riley, James | University of Kansas | 1952 |
| Riley, James | University of Leeds | 2017 |
| Riley, John | Brandeis University | 1964 |
| Riley, John | Kansas State University | 2008 |
| Riley, John | Massachusetts Institute of Technology | 1972 |
| Riley, Julia | University of Cambridge | 1975 |
| Riley, Kathy | Montana State University | 2003 |
| Riley, Kenneth | University of Cambridge | 1961 |
| Riley, Kyle | Montana State University | 1999 |
| Riley, Luke | University of Liverpool | 2015 |
| Riley, Nicholas | ||
| Riley, Patrick | Carnegie Mellon University | 2005 |
| Riley, Richard | ||
| Riley, Robert | Georgia Institute of Technology | 1996 |
| Riley, Robert | University of Southampton | 1980 |
| Riley, Robert | University of Wisconsin-Madison | 1991 |
| Riley, Ryan | Purdue University | 2009 |
| Riley, Sarah | The University of North Carolina at Chapel Hill | 2009 |
| Riley, Stephen | University of Akron | 2023 |
| Riley, Steven | University of Oxford | 2002 |
| Riley, Te'a | University of Texas at Arlington | 2024 |
| Riley, Thomas | Universiteit van Amsterdam | 2019 |
| Riley, Tim | University of Oxford | 2002 |
| Riley, Todd | Rutgers University, New Brunswick | 2008 |
| Riley, William J. | Texas A&M University | 1981 |
| Riley Jr., John | Tulane University | 1968 |
| Riley, Jr., John | University of Connecticut | 1980 |
| Rilke, Florian | Universität Paderborn | 2006 |
| Rillaers, Alexandra | Université Catholique de Louvain | 2000 |
| Riller, Thomas | Friedrich-Alexander-Universität Erlangen-Nürnberg | 1995 |
| Rilliard, Albert | Institut National Polytechnique de Grenoble (INPG) | 2000 |
| Rilliet, Albert | Université de Genève | 1931 |
| Rilliet, Albert | Université de Paris | 1870 |
| Rilliet, Robert-Guillaume | Université de Genève | 1735 |
| Rilling, Joseph | Temple University | 2025 |
| Riloff, Ellen | University of Massachusetts Amherst | 1994 |
| Rilwan, Jewaidu | King Mongkut's University of Technology Thonburi | 2021 |