| English | eng-000 |
| Naples | |
| Afrikaans | afr-000 | Napels |
| toskërishte | als-000 | Napoli |
| toskërishte | als-000 | Neapel |
| العربية | arb-000 | نابلي |
| العربية | arb-000 | نابولي |
| العربية | arb-000 | نابُلِي |
| العربية | arb-000 | نابُولِي |
| العربية | arb-000 | نَابُلِي |
| العربية | arb-000 | نَابُولِي |
| Classical Arabic—ASJP | arb-001 | Nābūlī |
| luenga aragonesa | arg-000 | Nápols |
| Toki Pona | art-007 | ma tomo Napoli |
| Universal Networking Language | art-253 | naples(iof>city>thing) |
| ISO 3166-2 | art-416 | IT-NA |
| asturianu | ast-000 | Nápoles |
| azərbaycanca | azj-000 | Neapol |
| беларуская | bel-000 | Неапаль |
| тарашкевіца | bel-001 | Нэапаль |
| biełaruskaja łacinka | bel-002 | Neapal’ |
| bosanski | bos-000 | Napulj |
| brezhoneg | bre-000 | Naplez |
| brezhoneg | bre-000 | Napoli |
| български | bul-000 | Напълс |
| български | bul-000 | Неапол |
| bălgarski ezik | bul-001 | Neapol |
| Carolinian | cal-000 | Napuli |
| català | cat-000 | Nàpols |
| čeština | ces-000 | Naples |
| čeština | ces-000 | Neapol |
| Çăvaşla | chv-001 | Neapol’ |
| 普通话 | cmn-000 | 那不勒斯 |
| 國語 | cmn-001 | 那不勒斯 |
| Hànyǔ | cmn-003 | Nà bù lè si |
| Hànyǔ | cmn-003 | Nàbùlèsī |
| Cymraeg | cym-000 | Napoli |
| dansk | dan-000 | Napoli |
| dansk | dan-000 | Neapel |
| Deutsch | deu-000 | Naples |
| Deutsch | deu-000 | Napoli |
| Deutsch | deu-000 | Neapel |
| eesti | ekk-000 | Napoli |
| ελληνικά | ell-000 | Νάπολη |
| ελληνικά | ell-000 | Νεάπολη |
| ελληνικά | ell-000 | Νεάπολις |
| Ellinika | ell-003 | Neápoli |
| Ellinika | ell-003 | Nápoli |
| English | eng-000 | Italy |
| English | eng-000 | Napoli |
| Esperanto | epo-000 | Napolo |
| Esperanto | epo-000 | Nápoles |
| euskara | eus-000 | Napoles |
| euskara | eus-000 | Napoli |
| suomi | fin-000 | Naples |
| suomi | fin-000 | Napoli |
| français | fra-000 | Naples |
| Frysk | fry-000 | Napels |
| lenghe furlane | fur-000 | Napoli |
| Gaeilge | gle-000 | Napoli |
| galego | glg-000 | Nápoles |
| galego | glg-000 | Nápoles - Napoli |
| ἑλληνικὴ γλῶττα | grc-000 | Νεάπολις |
| ʻōlelo Hawaiʻi | haw-000 | Napela |
| Српскохрватски | hbs-000 | Напуљ |
| Srpskohrvatski | hbs-001 | Napulj |
| עברית | heb-000 | נאפולי |
| हिन्दी | hin-000 | नापोलि |
| hrvatski | hrv-000 | Napulj |
| magyar | hun-000 | Nápoly |
| արևելահայերեն | hye-000 | Նեապոլ |
| hyw-001 | Neapol | |
| Ido | ido-000 | Naples |
| Ido | ido-000 | Napoli |
| interlingua | ina-000 | Napoli |
| interlingua | ina-000 | Neapole |
| bahasa Indonesia | ind-000 | Naples |
| bahasa Indonesia | ind-000 | Napoli |
| bahasa Indonesia | ind-000 | S.S.C. Napoli |
| íslenska | isl-000 | Napólí |
| italiano | ita-000 | Naples |
| italiano | ita-000 | Napoli |
| 日本語 | jpn-000 | ナポリ |
| 日本語 | jpn-000 | ナポリ市 |
| 日本語 | jpn-000 | ナポリ県 |
| Nihongo | jpn-001 | Napori |
| ქართული | kat-000 | ნეაპოლი |
| Kartuli | kat-001 | neap'oli |
| қазақ | kaz-000 | Неаполь |
| ភាសាខ្មែរ | khm-000 | នែផ្លេស |
| Kurmancî | kmr-000 | Napolî |
| 한국어 | kor-000 | 나폴리 |
| Hangungmal | kor-001 | Napolli |
| Komi | kpv-001 | Neapol' |
| latine | lat-000 | Neapolis |
| latine | lat-000 | Neāpolis |
| lengua lígure | lij-000 | Nappoli |
| lengua lígure | lij-000 | Nàpoli |
| lietuvių | lit-000 | Neapolis |
| lengua lumbarda | lmo-000 | Naples |
| latviešu | lvs-000 | Neapole |
| मराठी | mar-000 | नेपल्स |
| македонски | mkd-000 | Неапол |
| Makedonski jazik | mkd-001 | Neapol |
| Malti | mlt-000 | Napli |
| Malti | mlt-000 | il-Provinċja ta’ Napli |
| napulitano | nap-000 | Napule |
| napulitano | nap-000 | Nàpule |
| Nederlands | nld-000 | Napels |
| Nederlands | nld-000 | Naples |
| nynorsk | nno-000 | Napoli |
| bokmål | nob-000 | Naples |
| bokmål | nob-000 | Napoli |
| occitan | oci-000 | Nàpols |
| Amanung Sisuan | pam-000 | Naples |
| فارسی | pes-000 | ناپل |
| Isfahani | pes-001 | Nāpol |
| lenga piemontèisa | pms-000 | Nàpoli |
| polski | pol-000 | Neapol |
| português | por-000 | Naples |
| português | por-000 | Nápoles |
| Qusqu qhichwa simi | quz-000 | Napoli |
| lingua rumantscha | roh-000 | Napoli |
| română | ron-000 | Napoli |
| română | ron-000 | Neapole |
| русский | rus-000 | Неа́поль |
| русский | rus-000 | Неаполь |
| русский | rus-000 | Нейплс |
| русский | rus-000 | неаполитанский |
| russkij | rus-001 | Neapol’ |
| lingua siciliana | scn-000 | Napuli |
| lingua siciliana | scn-000 | Nàpuli |
| slovenčina | slk-000 | Neapol |
| slovenčina | slk-000 | neapolská |
| slovenčina | slk-000 | neapolské |
| slovenčina | slk-000 | neapolský |
| slovenščina | slv-000 | Neapelj |
| slovenščina | slv-000 | Neápelj |
| español | spa-000 | Naples |
| español | spa-000 | Nápoles |
| српски | srp-000 | Напуљ |
| srpski | srp-001 | Napulj |
| srpski | srp-001 | Napulj |
| svenska | swe-000 | Napoli |
| svenska | swe-000 | Neapel |
| Kiswahili | swh-000 | Napoli |
| Tagalog | tgl-000 | Naples |
| Tagalog | tgl-000 | Nápolés |
| ภาษาไทย | tha-000 | เนเปิลส์ |
| ภาษาไทย | tha-000 | เมืองเนเปิลส์ |
| Türkçe | tur-000 | Napoli |
| Talossan | tzl-000 | Nabell |
| удмурт кыл | udm-000 | Неаполь |
| українська | ukr-000 | Неаполь |
| Latynytsia | ukr-001 | Neapol’ |
| łéngua vèneta | vec-000 | Nàpułi |
| tiếng Việt | vie-000 | Napoli |
| Vlaams | vls-000 | Noapels |
| Volapük | vol-000 | Naples |
| Volapük | vol-000 | Napoli |
| ייִדיש | ydd-000 | נאפאלי |
| 原中国 | zho-000 | 那不勒斯 |
| Bahasa Malaysia | zsm-000 | Naples |
| Bahasa Malaysia | zsm-000 | Napoli |