| Abbreviation | Definition |
|---|---|
| PON | Ponape |
| POR | Portuguese |
| PRA | Prakrit uages |
| PRO | Provencal, Old (to 1500) |
| PSE | Pidgin Signed English |
| PUMA | Porottayum Uppmaavum Morilmukki Adicho |
| PUS | Pushto |
| QAF | Quran Arabic and Fardu |
| QUE | Quechua |
| RAJ | Rajasthan |
| RAJ | Rajasthani |
| RAR | Rarotongan |
| REAB | Rereloluwa Eunice Ashabiade Bolaji |
| RIO | Rock In Opposition |
| RKY | Richmond, Kentucky |
| ROA | Romance (Other) |
| ROH | Rhaeto- Romance |
| ROM | Romany |
| RON | Romanian |
| ROU | Roumanie, Romania |