| English | eng-000 |
| leucine | |
| العربية | arb-000 | لوسين |
| العربية | arb-000 | ليسين - حامض أمينيّ أساسيّ |
| العربية | arb-000 | ليوسين |
| беларуская | bel-000 | лейцын |
| български | bul-000 | левцин |
| català | cat-000 | leucina |
| čeština | ces-000 | leucin |
| 普通话 | cmn-000 | 亮氨酸 |
| 普通话 | cmn-000 | 氨基己酸 |
| 普通话 | cmn-000 | 白氨酸 |
| 國語 | cmn-001 | 亮氨酸 |
| 國語 | cmn-001 | 白氨酸 |
| dansk | dan-000 | leucin |
| Deutsch | deu-000 | Leucin |
| ελληνικά | ell-000 | λευκίνη |
| English | eng-000 | aminocaproic acid |
| English | eng-000 | aminocarproic acid |
| Esperanto | epo-000 | leŭcino |
| suomi | fin-000 | leusiini |
| français | fra-000 | leucine |
| galego | glg-000 | leucina |
| Srpskohrvatski | hbs-001 | leucin |
| हिन्दी | hin-000 | ल्यूसिन |
| hrvatski | hrv-000 | leucin |
| magyar | hun-000 | leucin |
| Ido | ido-000 | leucino |
| íslenska | isl-000 | lefsín |
| italiano | ita-000 | leucina |
| 日本語 | jpn-000 | ロイシン |
| 한국어 | kor-000 | 류신 |
| lietuvių | lit-000 | Leucinas |
| latviešu | lvs-000 | leicīns |
| македонски | mkd-000 | леуцин |
| Nederlands | nld-000 | leucine |
| bokmål | nob-000 | leucin |
| فارسی | pes-000 | فارسی |
| فارسی | pes-000 | لوسین |
| polski | pol-000 | leucyna |
| português | por-000 | leucina |
| română | ron-000 | leucină |
| русский | rus-000 | лейци́н |
| русский | rus-000 | лейцин |
| русский | rus-000 | лейциновый |
| slovenčina | slk-000 | leucín |
| slovenščina | slv-000 | levcin |
| español | spa-000 | leucina |
| српски | srp-000 | леуцин |
| srpski | srp-001 | leucin |
| svenska | swe-000 | leucin |
| ภาษาไทย | tha-000 | ลิวซีน |
| ภาษาไทย | tha-000 | ลูซีน |
| Türkçe | tur-000 | lösin |
| oʻzbek | uzn-000 | leytsin |