| raggypoo ("Just a guy who enjoys games and science.") | Rodney Duane ("I am retired, and live in Columbus, Ohio. My hobbies include reading, walking and computer...") | ||
 | Raspberry Pi - Brian ("This Account specifically for running with the tiny Raspberry Pi single board computer...") |  | RickMz ("Retired U.S. Air Force officer.") |
| Robbie Klinkenberg ("Hello") |  | Rhodan71 ("I live in France where I work as a freelance in software development. I support every...") | |
| RT1984 ("Rechenkraft.net e.V. Weltweit erster gemeinnuetziger Verein fuer verteiltes Rechnen -...") |  | RMC Russell Vincent ("I am currently retired and residing in Balibago, Santa Rosa, Laguna, Philippines....") | |
| rotop100.com ("rotop100.com is Forever.") |
