Other
- Radiodifusão Portuguesa, a subsidiary of Rádio e Televisão de Portugal
- Ratos de Porão, a Brazilian hardcore band
- Recreational Dive Planner
- Registered domestic partner
- Rivière-des-Prairies, now part of the Rivière-des-Prairies–Pointe-aux-Trembles borough of Montreal
- Roll of Distinguished Philatelists, a philatelic award
- RDP (film), Fujichrome 100 D Professional and Fujichrome Provia 100 and 100F Professional, a series of professional Fujifilm color reversal films with a film speed of ISO 100
Read more about this topic: RDP