| Esperanto | epo-000 |
| Konstanco | |
| العربية | arb-000 | كونستانس |
| Classical Arabic—ASJP | arb-001 | Kūnstāns |
| български | bul-000 | Кюстенджа |
| bălgarski ezik | bul-001 | Konstanc |
| català | cat-000 | Constance |
| català | cat-000 | Constança |
| čeština | ces-000 | Constanța |
| čeština | ces-000 | Kostnice |
| 普通话 | cmn-000 | 康斯坦察 |
| 普通话 | cmn-000 | 康斯坦茨 |
| 國語 | cmn-001 | 康斯坦察 |
| 國語 | cmn-001 | 康斯坦茨 |
| Hànyǔ | cmn-003 | Kāngsītǎncí |
| Cymraeg | cym-000 | Constance |
| dansk | dan-000 | Constanța |
| dansk | dan-000 | Konstanz |
| Deutsch | deu-000 | Constanze |
| Deutsch | deu-000 | Constanța |
| Deutsch | deu-000 | Konstanz |
| Deutsch | deu-000 | Konstanze |
| eesti | ekk-000 | Constanța |
| eesti | ekk-000 | Konstanz |
| ελληνικά | ell-000 | Κωνσταντία |
| ελληνικά | ell-000 | Κωνσταντίνα |
| English | eng-000 | Constance |
| English | eng-000 | Constanța |
| English | eng-000 | Konstanz |
| Esperanto | epo-000 | Konstancio |
| suomi | fin-000 | Constanța |
| suomi | fin-000 | Konstanz |
| français | fra-000 | Constance |
| français | fra-000 | Constanța |
| Schwizerdütsch | gsw-000 | Konstanz |
| עברית | heb-000 | קונסטנץ |
| עברית | heb-000 | קונסטנצה |
| ISO 259-3 | heb-001 | Konstantz |
| hrvatski | hrv-000 | Konstanz |
| magyar | hun-000 | Konstanca |
| bahasa Indonesia | ind-000 | Konstanz |
| italiano | ita-000 | Costanza |
| italiano | ita-000 | Costanzo |
| 日本語 | jpn-000 | コンスタンツ |
| 日本語 | jpn-000 | コンスタンツァ |
| Nihongo | jpn-001 | Konsutantsu |
| ქართული | kat-000 | კონსტანცა |
| 한국어 | kor-000 | 콘스탄차 |
| 한국어 | kor-000 | 콘스탄트호 |
| latine | lat-000 | Constantia |
| lietuvių | lit-000 | Konstancas |
| latviešu | lvs-000 | Konstanca |
| македонски | mkd-000 | Костадинка |
| Nederlands | nld-000 | Constanța |
| Nederlands | nld-000 | Konstanz |
| nynorsk | nno-000 | Konstanz |
| bokmål | nob-000 | Constance |
| bokmål | nob-000 | Constanța |
| bokmål | nob-000 | Konstanz |
| polski | pol-000 | Konstanca |
| polski | pol-000 | Konstancja |
| português | por-000 | Constança |
| português | por-000 | Constanța |
| română | ron-000 | Constanța |
| română | ron-000 | Konstanz |
| русский | rus-000 | Констанц |
| русский | rus-000 | Констанца |
| russkij | rus-001 | Konstanc |
| lingua siciliana | scn-000 | Constanța |
| slovenčina | slk-000 | Constanța |
| español | spa-000 | Constanza |
| српски | srp-000 | Констанца |
| srpski | srp-001 | Konstanc |
| svenska | swe-000 | Constanța |
| svenska | swe-000 | Konstanz |
| тоҷикӣ | tgk-000 | Константса |
| Türkçe | tur-000 | Konstanz |
| Türkçe | tur-000 | Köstence |
| українська | ukr-000 | Констанц |
| українська | ukr-000 | Констанца |
| Latynytsia | ukr-001 | Konstanc |
| łéngua vèneta | vec-000 | Costanzsa |
| Volapük | vol-000 | Constanța |
| Volapük | vol-000 | Konstanz |