| latine | lat-000 |
| Protactinium | |
| беларуская | bel-000 | пратактыній |
| brezhoneg | bre-000 | protaktiniom |
| Deutsch | deu-000 | Protactinium |
| English | eng-000 | protactinium |
| Esperanto | epo-000 | protaktinio |
| français | fra-000 | protactinium |
| magyar | hun-000 | protaktínium |
| italiano | ita-000 | protattinio |
| Nederlands | nld-000 | protactinium |
| polski | pol-000 | proaktyn |
| português | por-000 | protactínio |
| русский | rus-000 | протактиний |
| español | spa-000 | protactinio |