| Danielle M Ransom | Psy.D. | Yes | | Pediatric | | |
| Sarah A. Raskin | Ph.D. | Yes | | | | |
| Yuri Rassovsky | Ph.D. | Yes | | | | |
| Srishti Rau | Ph.D. | Yes | | 5-22 | - District of Columbia
- Maryland
- Virginia
| |
| Rebecca H. Rausch | Ph.D. | No | | | | |
| Lisa D. Ravdin | Ph.D. | Yes | | Adults | | |
| Jacqueline G. Rea | Ph.D. | Yes | | | | |
| James C. Reed | Ph.D. | No | | | | |
| Jennifer Linton Reesman | Ph.D. | Yes | - American Sign Language
- English
| Birth through adulthood | | |
| Gina M. Rehkemper | Ph.D. | Yes | | | | |
| Katherine Reiter | Ph.D. | Yes | | | | |
| Jenna Renfroe | Ph.D. | Yes | | 18+ | | |
| V. Lynn Rennison | Psy.D. | Yes | | Adults and Older Adults | | |
| Laura Renteria | Ph.D. | Yes | | 18 and up | | |
| Claudia Venessa Resendiz | Ph.D. | Yes | | | | |
| Summar Reslan | Ph.D. | Yes | | Adults | | |
| June Restrepo | Ph.D. | Yes | | 18-99 | | |
| Gustavo J Rey | Ph.D. | Yes | | 16-90+ | | |
| Celiane Rey-Casserly | Ph.D. | Yes | | | | |
| Gretchen Reynolds | Ph.D. | Yes | | | | |
| Linda D. Rice | Ph.D. | Yes | | 16+ | | |
| Annette E Richard | Ph.D. | Yes | | 0 - young adult | | |
| Joseph H. Ricker | Ph.D. | Yes | | 18-90+ | | |
| Tara Riddle | Ph.D. | Yes | | 16 years and older | | |
| Lisa Anne Riemenschneider | Psy.D. | Yes | | 18-100 | | |