| Language | Name | Code |
|---|---|---|
| Abkhazian | Сиднеи | ab |
| ace | Sydney | ace |
| ady | Сидней | ady |
| Afrikaans | Sydney | af |
| Amharic | ሲድኒ | am |
| Aragonese | Sydney | an |
| ang | Sydney | ang |
| Arabic | سيدني | ar |
| Official Aramaic (700-300 BCE) | ܣܝܕܢܝ | arc |
| ary | سيدني | ary |
| arz | سيدنى | arz |
| Assamese | ছিডনী | as |
| Asturian | Sydney | ast |
| Aymara | Sidni | ay |
| Azerbaijani | Sidney | az |
| azb | سیدنی | azb |
| Bashkir | Сидней | ba |
| ban | Sidni | ban |
| Bavarian | Sydney | bar |
| bcl | Sidney | bcl |
| Belarusian | Сідней | be |
| be-tarask | Сыднэй | be-tarask |
| bew | Sidni | bew |
| Bulgarian | Сидни | bg |
| bho | सिडनी | bho |
| Bislama | Sydney | bi |
| Bambara | Sydney | bm |
| Bengali | সিডনি | bn |
| Tibetan | སིད་ནེ། | bo |
| Breton | Sydney | br |
| Bosnian | Sydney | bs |
| bxr | Сидней | bxr |
| Catalan | Sydney | ca |
| cbk-zam | Sydney | cbk-zam |
| cdo | Sydney | cdo |
| Chechen | Сидней | ce |
| Cebuano | Sydney | ceb |
| Chamorro | Sidni | ch |
| chr | ᏏᎢdᏂᎢ | chr |
| chy | Sydney | chy |
| Central Kurdish | سیدنی | ckb |
| Corsican | Sydney | co |
| Cree | ᓯᑎᓂ | cr |
| crh | Sidney | crh |
| Czech | Sydney | cs |
| Chuvash | Сидней | cv |
| Welsh | Sydney | cy |
| Danish | Sydney | da |
| German | Sydney | de |
| din | Thidni | din |
| diq | Sidney | diq |
| Modern Greek (1453-) | Σίδνεϊ | el |
| eml | Sydney | eml |
| English | Sydney | en |
| en-ca | Sydney | en-ca |
| en-gb | Sydney | en-gb |
| Esperanto | Sidnejo | eo |
| Spanish | Sídney | es |
| Estonian | Sydney | et |
| Basque | Sydney | eu |
| ext | Sidney | ext |
| Persian | سیدنی | fa |
| Finnish | Sydney | fi |
| Fijian | Serene | fj |
| Faroese | Sydney | fo |
| French | Sydney | fr |
| frp | Sydney | frp |
| frr | Sydney (Steed) | frr |
| fur | Sydney | fur |
| Western Frisian | Sydney | fy |
| Irish | Sydney | ga |
| gag | Sydney | gag |
| gcr | Sidnè | gcr |
| Scottish Gaelic | Sydney | gd |
| Galician | Sydney | gl |
| Guaraní | Sínei | gn |
| gpe | Sydney | gpe |
| gsw | Sydney | gsw |
| Gujarati | સીડની | gu |
| Manx | Sydney | gv |
| Hausa | Sydney | ha |
| hak | Sydney | hak |
| haw | Kikinē | haw |
| Hebrew | סידני | he |
| Hindi | सिडनी | hi |
| hif | Sydney | hif |
| Croatian | Sydney | hr |
| Upper Sorbian | Sydney | hsb |
| Haitian | Sidnè | ht |
| Hungarian | Sydney | hu |
| Armenian | Սիդնեյ | hy |
| hyw | Սիտնի | hyw |
| Interlingua (International Auxiliary Language Association) | Sydney | ia |
| Indonesian | Sydney | id |
| Interlingue | Sydney | ie |
| ilo | Sydney | ilo |
| inh | Сидней | inh |
| Ido | Sydney | io |
| Icelandic | Sydney | is |
| Italian | Sydney | it |
| Inuktitut | ᓯᑦᓂ | iu |
| Japanese | シドニー | ja |
| jam | Sidni | jam |
| Javanese | Sydney | jv |
| Georgian | სიდნეი | ka |
| kaa | Sidney | kaa |
| kab | Sydney | kab |
| kbp | Sidinee | kbp |
| kcg | Si̱dni | kcg |
| Kazakh | Сидней | kk |
| kk-cyrl | Сидней | kk-cyrl |
| Kalaallisut | Sydney | kl |
| Khmer | ស៊ីដនីយ៏ | km |
| Kannada | ಸಿಡ್ನಿ | kn |
| Korean | 시드니 | ko |
| ko-kp | 씨드니 | ko-kp |
| krc | Сидней | krc |
| Kurdish | Sîdney | ku |
| Cornish | Sydney | kw |
| Kirghiz | Сидней | ky |
| Latin | Sydneium | la |
| lad | Sydney | lad |
| Luxembourgish | Sydney | lb |
| lez | Сидней | lez |
| Limburgan | Sydney | li |
| lij | Sydney | lij |
| lmo | Sydney | lmo |
| Lithuanian | Sidnėjus | lt |
| Latvian | Sidneja | lv |
| mai | सिड्नी | mai |
| map-bms | Sydney | map-bms |
| mdf | Сыднэй | mdf |
| Malagasy | Sydney | mg |
| mhr | Сидней | mhr |
| Maori | Poihākena | mi |
| Macedonian | Сиднеј | mk |
| Malayalam | സിഡ്നി | ml |
| Mongolian | Сидней | mn |
| Marathi | सिडनी | mr |
| Malay (macrolanguage) | Sydney | ms |
| ms-arab | سيدني | ms-arab |
| Maltese | Sydney | mt |
| mul | Sydney | mul |
| Burmese | ဆစ်ဒနီမြို့ | my |
| myv | Сидней ош | myv |
| mzn | سیدنی | mzn |
| Nauru | Sydney | na |
| nah | Sydney | nah |
| nan | Sydney | nan |
| Norwegian Bokmål | Sydney | nb |
| Low German | Sydney | nds |
| Nepali (macrolanguage) | सिड्नी | ne |
| new | सिद्नी | new |
| Dutch | Sydney | nl |
| Norwegian Nynorsk | Sydney | nn |
| nov | Sydney | nov |
| Chichewa | Sydney | ny |
| Occitan (post 1500) | Sydney | oc |
| Oromo | Siidnii | om |
| Ossetian | Сидней | os |
| Panjabi | ਸਿਡਨੀ | pa |
| pap | Sydney | pap |
| pcd | Sydney | pcd |
| pcm | Sidni | pcm |
| pdc | Sydney | pdc |
| pih | Sidni | pih |
| Polish | Sydney | pl |
| pms | Sydney | pms |
| pnb | سڈنی | pnb |
| Pushto | سیدنی | ps |
| Portuguese | Sydney | pt |
| pt-br | Sydney | pt-br |
| Quechua | Sydney | qu |
| rmy | Sydney | rmy |
| Romanian | Sydney | ro |
| roa-tara | Sydney | roa-tara |
| Russian | Сидней | ru |
| rue | Сідні | rue |
| Sanskrit | सिड्नि | sa |
| sah | Сидней | sah |
| sat | ᱥᱤᱰᱱᱤ | sat |
| Sardinian | Sydney | sc |
| Sicilian | Sydney | scn |
| Scots | Sydney | sco |
| Sindhi | سڊني | sd |
| Northern Sami | Sydney | se |
| sgs | Sėdniejos | sgs |
| sh | Sydney | sh |
| Sinhala | සිඩ්නි | si |
| Slovak | Sydney | sk |
| Slovenian | Sydney | sl |
| Samoan | Sini | sm |
| smn | Sydney | smn |
| sms | Sydney | sms |
| Somali | Sydney | so |
| Albanian | Sydney | sq |
| Serbian | Сиднеј | sr |
| stq | Sydney | stq |
| Sundanese | Sydney | su |
| Swedish | Sydney | sv |
| Swahili (macrolanguage) | Sydney | sw |
| syl | ꠍꠤꠒꠘꠤ ꠘꠉꠞ | syl |
| szl | Sydney | szl |
| Tamil | சிட்னி | ta |
| Telugu | సిడ్నీ | te |
| Tetum | Sidni | tet |
| Tajik | Сидней | tg |
| tg-cyrl | Сидней | tg-cyrl |
| Thai | ซิดนีย์ | th |
| Turkmen | Sidneý | tk |
| Tagalog | Sydney | tl |
| tly | Sidnej | tly |
| Tonga (Tonga Islands) | Senē | to |
| Tok Pisin | Sidni | tpi |
| Turkish | Sidney | tr |
| Tatar | Сидней | tt |
| tum | Sydney | tum |
| Twi | Sydney | tw |
| Tahitian | Sydney | ty |
| udm | Сидней | udm |
| Uighur | Sidnéy | ug |
| Ukrainian | Сідней | uk |
| Urdu | سڈنی | ur |
| Uzbek | Sidney | uz |
| vec | Sydney | vec |
| vep | Sidnei | vep |
| Vietnamese | Sydney | vi |
| Volapük | Sydney | vo |
| vro | Sydney | vro |
| war | Sydney | war |
| Wu Chinese | 悉尼 | wuu |
| Xhosa | Sidni | xh |
| xmf | სიდნეი | xmf |
| Yiddish | סידני | yi |
| Yoruba | Sydney | yo |
| yue | 雪梨 (澳洲) | yue |
| Chinese | 悉尼 | zh |
| zh-cn | 悉尼 | zh-cn |
| zh-hans | 悉尼 | zh-hans |
| zh-hant | 雪梨 | zh-hant |
| zh-hk | 悉尼 | zh-hk |
| zh-tw | 雪梨 | zh-tw |