| Esperanto | epo-000 |
| leŭcino | |
| dansk | dan-000 | leucin |
| Deutsch | deu-000 | Leucin |
| ελληνικά | ell-000 | λευκίνη |
| English | eng-000 | leucine |
| français | fra-000 | leucine |
| Ido | ido-000 | leucino |
| 日本語 | jpn-000 | ロイシン |
| polski | pol-000 | leucyna |
| português | por-000 | leucina |
| română | ron-000 | leucină |
| русский | rus-000 | лейци́н |
| español | spa-000 | leucina |
| svenska | swe-000 | leucin |