| Abbreviation | Designation | |
|---|---|---|
| p | Pullmanwagen / Mittelgang (German) | classification |
| 94 / PT | Portugal, República Portuguesa (Portuguese) Portuguese Republic | country code |
| P | Potsdam Hbf, Landeshauptstadt Potsdam (German) | fare point / vehicle registration plate |
| P | Partille (Swedish) | station code |
| SE-P | Älvsborg, Älvsborgs län (Swedish) | country code |
| P | Personenzug (German) | train category |
| P | Pospieszny (Polish) | train category |