| Acronym | Definition |
|---|
| PRN | Printer |
| PRN | Pro Re Nata (Latin: for the existing occasion; as matters are; as needed) |
| PRN | PR Newswire |
| PRN | Physician Recommended Nutriceuticals (Plymouth Meeting, PA) |
| PRN | Performance Racing Network |
| PRN | Parameter Reference Number |
| PRN | Print to File |
| PRN | Physical Register Number |
| PRN | Pseudo Random Noise |
| PRN | Pagan Radio Network |
| PRN | Pseudo-Random Noise |
| PRN | Pseudo Random Number |
| PRN | Press Release Network (various locations) |
| PRN | Preparedness Radio Network (Red Shed Media Group) |
| PRN | Pain Relief Network |
| PRN | Prairie Rivers Network (Illinois) |
| PRN | Practice Research Network |
| PRN | Premiere Radio Networks |
| PRN | Plated Round Nose (ammunition) |
| PRN | Packet Radio Network |
| PRN | Physician Referral Network (various organizations) |
| PRN | Pesticide Registration Notice (EPA) |
| PRN | Partido Resistencia Nicaragüense (Nicaraguan Resistance Party) |
| PRN | Packaging Waste Recovery Note (UK) |
| PRN | Programme de Renforcement de la Nutrition (French: Nutrition Enhancement Program; Senegal) |
| PRN | Practicing Registered Nurse |
| PRN | Person Record Number (police incident code; New Zealand) |
| PRN | Premium Rate Number(s) |
| PRN | Planetary Response Network (joint initiative) |
| PRN | Promoting Resiliency in Newborns |
| PRN | Provide Roaming Number |
| PRN | Pearson Education Canada (publisher) |
| PRN | Property Reference Number (various countries) |
| PRN | Patient Reader Necessary (medication advice) |
| PRN | Parts Return Notice |
| PRN | Policy Renewal Notice (insurance) |
| PRN | Prontuario Nacional (Spanish: National Syllabus; Chile) |
| PRN | Procurement Reallocation Notice |
| PRN | Pinpoint Road Network |
| PRN | Polymer Recycling Network (UK) |
| PRN | Pursuit Routing Number (computers) |
| PRN | Program Record/Reference Number |