| Portalegre | 0 | Portugal | PT-12 |
| Porto | 0 | Portugal | PT-13 |
| Posavina Canton | 0 | Bosnia and Herzegovina | BA-02 |
| Postojna Municipality | 0 | Slovenia | SI-094 |
| POW | 0 | United Kingdom | GB-POW |
| Požega-Slavonia County | 0 | Croatia | HR-11 |
| Prachatice | 0 | Czech Republic | CZ-315 |
| Praha-východ | 0 | Czech Republic | CZ-209 |
| Praha-západ | 0 | Czech Republic | CZ-20A |
| Praha, Hlavnà město | 0 | Czech Republic | CZ-10 |
| Prebold Municipality | 0 | Slovenia | SI-174 |
| Preddvor Municipality | 0 | Slovenia | SI-095 |
| Preiļi Municipality | 0 | Latvia | LV-073 |
| Přerov | 0 | Czech Republic | CZ-714 |
| Prevalje Municipality | 0 | Slovenia | SI-175 |
| Preveza Prefecture | 0 | Greece | GR-34 |
| PRI | 0 | Russia | RU-PRI |
| PÅ™Ãbram | 0 | Czech Republic | CZ-20B |
| Priekule Municipality | 0 | Latvia | LV-074 |
| Priekuļi Municipality | 0 | Latvia | LV-075 |
| Prienai District Municipality | 0 | Lithuania | LT-36 |
| Prilep Municipality | 0 | Republic of North Macedonia | MK-62 |
| Primorje-Gorski Kotar County | 0 | Croatia | HR-08 |
| Probištip Municipality | 0 | Republic of North Macedonia | MK-63 |
| Prostějov | 0 | Czech Republic | CZ-713 |
| Provence-Alpes-Côte d'Azur | 0 | France | FR-PAC |
| Province of Alessandria | 0 | Italy | IT-AL |
| Province of Ancona | 0 | Italy | IT-AN |
| Province of Ascoli Piceno | 0 | Italy | IT-AP |
| Province of Asti | 0 | Italy | IT-AT |
| Province of Avellino | 0 | Italy | IT-AV |
| Province of Barletta-Andria-Trani | 0 | Italy | IT-BT |
| Province of Belluno | 0 | Italy | IT-BL |
| Province of Bergamo | 0 | Italy | IT-BG |
| Province of Biella | 0 | Italy | IT-BI |
| Province of Brescia | 0 | Italy | IT-BS |
| Province of Brindisi | 0 | Italy | IT-BR |
| Province of Campobasso | 0 | Italy | IT-CB |
| Province of Carbonia-Iglesias | 0 | Italy | IT-CI |
| Province of Caserta | 0 | Italy | IT-CE |
| Province of Catanzaro | 0 | Italy | IT-CZ |
| Province of Chieti | 0 | Italy | IT-CH |
| Province of Como | 0 | Italy | IT-CO |
| Province of Cosenza | 0 | Italy | IT-CS |
| Province of Cremona | 0 | Italy | IT-CR |
| Province of Crotone | 0 | Italy | IT-KR |
| Province of Cuneo | 0 | Italy | IT-CN |
| Province of Fermo | 0 | Italy | IT-FM |
| Province of Ferrara | 0 | Italy | IT-FE |
| Province of Foggia | 0 | Italy | IT-FG |
| Province of Forlì-Cesena | 0 | Italy | IT-FC |
| Province of Frosinone | 0 | Italy | IT-FR |
| Province of Gorizia | 0 | Italy | IT-GO |
| Province of Grosseto | 0 | Italy | IT-GR |
| Province of Imperia | 0 | Italy | IT-IM |
| Province of Isernia | 0 | Italy | IT-IS |
| Province of L'Aquila | 0 | Italy | IT-AQ |
| Province of La Spezia | 0 | Italy | IT-SP |
| Province of Latina | 0 | Italy | IT-LT |
| Province of Lecce | 0 | Italy | IT-LE |
| Province of Lecco | 0 | Italy | IT-LC |
| Province of Livorno | 0 | Italy | IT-LI |
| Province of Lodi | 0 | Italy | IT-LO |
| Province of Lucca | 0 | Italy | IT-LU |
| Province of Macerata | 0 | Italy | IT-MC |
| Province of Mantua | 0 | Italy | IT-MN |
| Province of Massa and Carrara | 0 | Italy | IT-MS |
| Province of Matera | 0 | Italy | IT-MT |
| Province of Medio Campidano | 0 | Italy | IT-VS |
| Province of Modena | 0 | Italy | IT-MO |
| Province of Monza and Brianza | 0 | Italy | IT-MB |
| Province of Novara | 0 | Italy | IT-NO |
| Province of Nuoro | 0 | Italy | IT-NU |
| Province of Ogliastra | 0 | Italy | IT-OG |
| Province of Olbia-Tempio | 0 | Italy | IT-OT |
| Province of Oristano | 0 | Italy | IT-OR |
| Province of Padua | 0 | Italy | IT-PD |
| Province of Parma | 0 | Italy | IT-PR |
| Province of Pavia | 0 | Italy | IT-PV |
| Province of Perugia | 0 | Italy | IT-PG |
| Province of Pescara | 0 | Italy | IT-PE |
| Province of Piacenza | 0 | Italy | IT-PC |
| Province of Pisa | 0 | Italy | IT-PI |
| Province of Pistoia | 0 | Italy | IT-PT |
| Province of Pordenone | 0 | Italy | IT-PN |
| Province of Potenza | 0 | Italy | IT-PZ |
| Province of Prato | 0 | Italy | IT-PO |
| Province of Ravenna | 0 | Italy | IT-RA |
| Province of Reggio Emilia | 0 | Italy | IT-RE |
| Province of Rieti | 0 | Italy | IT-RI |
| Province of Rimini | 0 | Italy | IT-RN |
| Province of Rovigo | 0 | Italy | IT-RO |
| Province of Salerno | 0 | Italy | IT-SA |
| Province of Sassari | 0 | Italy | IT-SS |
| Province of Savona | 0 | Italy | IT-SV |
| Province of Siena | 0 | Italy | IT-SI |
| Province of Sondrio | 0 | Italy | IT-SO |
| Province of Taranto | 0 | Italy | IT-TA |
| Province of Teramo | 0 | Italy | IT-TE |
| Province of Terni | 0 | Italy | IT-TR |
