| letter writer | escritor de cartas |
| letter writing | correspondencia |
| letterbox | buzón |
| lettered | culto |
| letterhead | membrete |
| lettering | letras |
| Letterist International | Internacional Letrista |
| letters | correspondencia |
| Letters from Iwo Jima | Cartas desde Iwo Jima |
| letterscales | pesacartas |
| Letting out | El alquiler |
| Lettish | Idioma letón |
| lettuce | lechuga |
| letup | descanso |
| Letzigrund | Letzigrund |
| Leucaena leucocephala | Leucaena leucocephala |
| Leucanthemum | Leucanthemum |
| Leuce | Leuce |
| Leuchtenbergia | Leuchtenbergia |
| Leucippe | Leucipo de Mileto |
| Leucippus | Leucipo de Mileto |
| Leucite | Leucita |
| leucocyte | leucocito |
| Leucocytes | Leucocito |
| Leucoplast | Leucoplasto |
| Leucothea | Leucótea |
| Leuk | Distrito de Leuk |
| leukaemia | leucemia |
| leukemia | leucemia |
| Leukerbad | Leukerbad |
| leukocyte | leucocito |
| Leukocyte extravasation | Diapédesis |
| Leukocytes | Leucocito |
| Leukodystrophy | Leucodistrofia |
| Leukoplakia | Leucoplasia |
| Leukotriene | Leucotrieno |
| Leuni | Leunos |
| Leuven | Lovaina |
| Leuven administrative Arrondissement | Lovaina |
| Leuzigen | Leuzigen |
| Lev | Lev |
| Lev Chernyi | Lev Tchernyi |
| Lev Ivanov | Lev Ivanov |
| Lev Kamenev | Lev Kamenev |
| Lev Kuleshov | Lev Kuleshov |
| Lev Landau | Lev Davidovich Landau |
| Lev Lemke | Lev Lemke |
| Lev Rubinstein | Lev Rubinstein |
| Lev Shestakov | Lev Shestakov |
| Lev Shestov | León Chestov |
| Lev Vygotsky | Lev Vigotsky |
| Lev Yashin | Lev Yashin |
| Levallois technique | Método Levallois |
| Levan Kobiashvili | Levan Kobiashvili |
| Levant | Levante mediterráneo |
| Levant Sparrowhawk | Accipiter brevipes |
| Levante UD | Levante Unión Deportiva |
| Levanto District | Distrito de Levanto |
| Levator labii superioris | Elevador propio del labio superior |
| Levator labii superioris alaeque nasi muscle | Elevador común del ala de la nariz y del labio superior |
| levee | dique |
| level | alisar |
