| Occitan (post 1500) | Okzitanisch (Andere) | oci | oc |
| Ojibwa | Ojibwa-Sprache | oji | oj |
| Old Bulgarian; Old Slavonic; Church Slavonic; Church Slavic; Old Church Slavonic | Kirchenslawisch | chu | cu |
| Old Newari; Classical Newari; Classical Nepal Bhasa | Alt-Newari | nwc | |
| Oriya | Oriya-Sprache | ori | or |
| Oromo | Galla-Sprache | orm | om |
| Osage | Osage-Sprache | osa | |
| Ossetian; Ossetic | Ossetisch | oss | os |
| Otomian languages | Otomangue-Sprachen | oto | |
| Pahlavi | Pehlewi | pal | |
| Palauan | Palau-Sprache | pau | |
| Pali | Pali | pli | pi |
| Pampanga; Kapampangan | Pampanggan-Sprache | pam | |
| Pangasinan | Pangasinan-Sprache | pag | |
| Panjabi; Punjabi | Pandschabi-Sprache | pan | pa |
| Papiamento | Papiamento | pap | |
| Papuan (Other) | Andere Papuasprachen | paa | |
| Pedi; Sepedi; Northern Sotho | Pedi-Sprache | nso | |
| Persian | Persisch | per/fas | fa |
| Persian, Old (ca. 600-400 B.C.) | Altpersisch (ca. 600-400 v. Chr.) | peo | |
| Philippine (Other) | Philippinen-Austronesisch (Andere) | phi | |
| Phoenician | Phönikisch | phn | |
| Pilipino; Filipino | Pilipino; Philippinen-Austronesisch | fil | |
| Pohnpeian | Ponapeianisch | pon | |
| Polish | Polnisch | pol | pl |
| Portuguese | Portugiesisch | por | pt |
| Prakrit languages | Prâkrit | pra | |
| Provençal; Occitan (post 1500) | Okzitanisch (Andere) | oci | oc |
| Provençal, Old (to 1500); Occitan, Old (to 1500) | Altprovenzalisch (Altokzitanisch, bis 1500) | pro | |
| Punjabi; Panjabi | Pandschabi-Sprache | pan | pa |
| Pushto; Pashto | Paschtu | pus | ps |
