There are 30 mathematicians whose last name begin with ROA.
| Roa, Emeterio | University of Michigan | 1923 |
| Roa, Monica | The Pennsylvania State University | 2016 |
| Roa, Richard | Washington University in St. Louis | 1975 |
| Roach, Cameron | Monash University | 2020 |
| Roach, Chris | Southern Methodist University | 1971 |
| Roach, Craig | University of Wisconsin-Madison | 1983 |
| Roach, David | Vanderbilt University | 1997 |
| Roach, Everette | University of Texas at Austin | 1965 |
| Roach, Francis | University of Texas at Austin | 1966 |
| Roach, Gary | Victoria University of Manchester | 1964 |
| Roach, Jeffrey | University of Virginia | 1999 |
| Roach, Kitty | University of Northern Colorado | 2015 |
| Roach, Merle | University of Alabama-Tuscaloosa | 1967 |
| Roach, Michael | University of California, Santa Cruz | 1980 |
| Roach, Paul | Cardiff University | 1990 |
| Roach, William | University of Oregon | 1956 |
| Roads, John | Massachusetts Institute of Technology | 1977 |
| Roald, Colin | University of Rochester | 1998 |
| Roald, Marie | Oslo Metropolitan University | 2023 |
| Roa Leguizamon, Leonardo | Centro de Investigación en Matemáticas, CIMAT | 2018 |
| Roan, Elizabeth | Texas State University | 2024 |
| Roan, Raymond | University of Michigan | 1976 |
| Roan, Shi-shyr | Brandeis University | 1974 |
| Roanes Lozano, Eugenio | Universidad de Sevilla | 1991 |
| Roanes Lozano, Eugenio | Universidad Politécnica de Madrid | 1993 |
| Roanes-Macías, Eugenio | Universidad Complutense de Madrid | 1970 |
| Roark, Winfred | The University of Oklahoma | 1976 |
| Roarty, Hugh | 2001 | |
| Roat, Jolie | Iowa State University | 2015 |
| Roa Vicens, Javier | Universidad Politécnica de Madrid | 2016 |