PR
- Pr – (i) Pastor or Priest
- Pr – (s) Praseodymium
- PR – (i) Public Relations – (s) Puerto Rico (postal symbol; ISO 3166 digram)
- Prb – (i) Presbyter
- PRBO – (i) Point Reyes Bird Observatory
- PRC – (i) People's Republic of China
- PRD – (i) CERDEC Product Realization Directorate
- PRFG – (s) Partial Fog (METAR Code)
- PRI – (s) Puerto Rico (ISO 3166 trigram)
- PRK – (s) Democratic People's Republic of Korea (ISO 3166 trigram)
- PRM – (i) Personnel Readiness Management
- PRN – (i) pro re nata (Latin, "for the emergency", "as needed")
- PRT – (s) Portugal (ISO 3166 trigram) – (i) Provincial Reconstruction Team
- PRY – (s) Paraguay (ISO 3166 trigram)
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