| Language | Name | Code |
|---|---|---|
| Arabic | كيلسي | ar |
| arz | كيلسى | arz |
| Asturian | Kielce | ast |
| Azerbaijani | Keltse | az |
| Bashkir | Кельце | ba |
| Belarusian | Кельцы | be |
| be-tarask | Кельцы | be-tarask |
| Bulgarian | Келце | bg |
| Bengali | কিলসে | bn |
| Breton | Kielce | br |
| Catalan | Kielce | ca |
| Chechen | Кельце | ce |
| Cebuano | Kielce | ceb |
| crh | Keltse | crh |
| Czech | Kielce | cs |
| csb | Kielce | csb |
| Welsh | Kielce | cy |
| Danish | Kielce | da |
| German | Kielce | de |
| dsb | Kielce | dsb |
| Modern Greek (1453-) | Κίελτσε | el |
| English | Kielce | en |
| Esperanto | Kielce | eo |
| Spanish | Kielce | es |
| Estonian | Kielce | et |
| Basque | Kielce | eu |
| Persian | کیلتس | fa |
| Finnish | Kielce | fi |
| French | Kielce | fr |
| Irish | Kielce | ga |
| Gujarati | કિએલ્સ | gu |
| Manx | Kielce | gv |
| hak | Khái-ngì-chhái | hak |
| Hebrew | קיילצה | he |
| Hindi | कील्स | hi |
| Croatian | Kielce | hr |
| Hungarian | Kielce | hu |
| Armenian | Կելցե | hy |
| Indonesian | Kielce | id |
| Ido | Kielce | io |
| Icelandic | Kielce | is |
| Italian | Kielce | it |
| Japanese | キェルツェ | ja |
| Javanese | Kielce | jv |
| Georgian | კელცე | ka |
| Kannada | ಕೀಲ್ಸೆ | kn |
| Korean | 키엘체 | ko |
| Luxembourgish | Kielce | lb |
| Lithuanian | Kelcai | lt |
| Latvian | Kelce | lv |
| mdf | Кельцэ | mdf |
| Macedonian | Келце | mk |
| Marathi | केल्स | mr |
| Malay (macrolanguage) | Kielce | ms |
| myv | Кельце ош | myv |
| Nauru | Kielce | na |
| nah | Kielce | nah |
| nan | Kielce | nan |
| Norwegian Bokmål | Kielce | nb |
| Low German | Kielce | nds |
| Dutch | Kielce | nl |
| Norwegian Nynorsk | Kielce | nn |
| Occitan (post 1500) | Kielce | oc |
| Ossetian | Кельце | os |
| Polish | Kielce | pl |
| pnb | کیلچ | pnb |
| Portuguese | Kielce | pt |
| pt-br | Kielce | pt-br |
| Quechua | Kielce | qu |
| Romanian | Kielce | ro |
| Russian | Кельце | ru |
| Scots | Kielce | sco |
| sh | Kielce | sh |
| Sinhala | කීල්සේ | si |
| Slovak | Kielce | sk |
| Slovenian | Kielce | sl |
| Serbian | Кјелце | sr |
| Swedish | Kielce | sv |
| szl | Kelce | szl |
| Tamil | கையில்சே | ta |
| Telugu | కీల్స్ | te |
| Tetum | Kielce | tet |
| Thai | คีเอลเซ | th |
| Turkish | Kielce | tr |
| Tatar | Келсе | tt |
| udm | Кельце | udm |
| Ukrainian | Кельці | uk |
| Urdu | کیئلتسہ | ur |
| Uzbek | Kelse | uz |
| vec | Kielce | vec |
| vep | Kel'ce | vep |
| Vietnamese | Kielce | vi |
| Volapük | Kielce | vo |
| war | Kielce | war |
| Wu Chinese | 凯尔采 | wuu |
| xmf | კელცე | xmf |
| Yiddish | קעלץ | yi |
| yue | 奇耶爾謝 | yue |
| Chinese | 凯尔采 | zh |
| zh-cn | 凯尔采 | zh-cn |
| zh-hans | 凯尔采 | zh-hans |
| zh-hant | 凱爾采 | zh-hant |
| zh-hk | 凱爾采 | zh-hk |
| zh-sg | 凯尔采 | zh-sg |
| zh-tw | 凱爾采 | zh-tw |