| Language | Name | Code |
|---|---|---|
| Arabic | سوكو | ar |
| Asturian | Saku | ast |
| azb | ساکو | azb |
| Belarusian | Саку | be |
| Bengali | সাকাু | bn |
| Catalan | Saku | ca |
| Chechen | Саку (гӀала) | ce |
| Cebuano | Saku | ceb |
| Czech | Saku | cs |
| Danish | Saku | da |
| German | Saku | de |
| Modern Greek (1453-) | Σάκου | el |
| English | Saku | en |
| en-gb | Saku | en-gb |
| Spanish | Saku | es |
| Estonian | Saku | et |
| Persian | ساکو | fa |
| Finnish | Saku | fi |
| French | Saku | fr |
| Irish | Saku | ga |
| Galician | Saku | gl |
| Gujarati | સાકુ | gu |
| Hindi | साकू | hi |
| Hungarian | Szaku | hu |
| Armenian | Սակու | hy |
| Indonesian | Saku | id |
| Italian | Saku | it |
| Japanese | 佐久市 | ja |
| Kannada | ಸಕು | kn |
| Korean | 사쿠시 | ko |
| Lithuanian | Saku | lt |
| Latvian | Saku | lv |
| lzh | 佐久市 | lzh |
| Marathi | सकू | mr |
| Malay (macrolanguage) | Saku | ms |
| mzn | ساکو | mzn |
| nan | Saku-chhī | nan |
| Norwegian Bokmål | Saku | nb |
| Dutch | Saku | nl |
| Polish | Saku | pl |
| Portuguese | Saku | pt |
| Romanian | Saku | ro |
| Russian | Саку | ru |
| sh | Saku | sh |
| Sinhala | සාකු | si |
| Slovak | Saku | sk |
| Serbian | Саку | sr |
| sr-ec | Саку | sr-ec |
| sr-el | Saku | sr-el |
| Swedish | Saku | sv |
| Tamil | சாக்கு | ta |
| Telugu | సాకు | te |
| Tajik | Саку | tg |
| tg-latn | Saku | tg-latn |
| Thai | ซากุ | th |
| Tagalog | Saku | tl |
| Turkish | Saku | tr |
| Tatar | Саку | tt |
| Ukrainian | Саку | uk |
| Urdu | سکو | ur |
| Vietnamese | Saku | vi |
| war | Saku | war |
| yue | 佐久 | yue |
| Chinese | 佐久市 | zh |
| zh-hans | 佐久市 | zh-hans |
| zh-hant | 佐久市 | zh-hant |
| zh-hk | 佐久市 | zh-hk |