| Labor Party | Izraelska Partia Pracy |
| Labor theory of value | Laborystyczna teoria wartości |
| laboratory | laboratorium |
| laboratory experiment | doświadczenia laboratoryjne |
| laboratory research | badanie laboratoryjne |
| laboratory technique | metoda laboratoryjna |
| laboratory techniques | metoda laboratoryjna |
| laboratory test | badania laboratoryjne |
| laboratory waste | odpady laboratoryjne |
| Laborec | Laborec |
| Laborem Exercens | Laborem exercens |
| laborious | pracowity |
| labour | praca |
| Labour Day | Święto Pracy |
| labour force | siła robocza |
| labour law | prawo pracy |
| labour market | rynek pracy |
| Labour Party | Partia Pracy |
| labour relations | stosunki pracy |
| labour-consuming | pracochłonny |
| labour-intensive | pracochłonny |
| Labours of Hercules | Dwanaście prac Heraklesa |
| Labrador | Labrador |
| Labrador Current | Prąd Labradorski |
| Labrador Peninsula | Labrador |
| Labrador Retriever | Labrador Retriever |
| Labrador Sea | Morze Labradorskie |
| labrys | labrys |
| Labuan | Labuan |
| labyrinth | labirynt |
| Labyrinthodontia | Labiryntodonty |
| Labyrinthulomycetes | Labiryntulorośla |
| Lac de la Gruyère | Gruyère |
| Lac operon | Operon laktozowy |
| Lac Region | Region Lac |
| Laccadive Sea | Morze Lakkadiwskie |
| Laccadives | Lakszadiwy |
| Laccolith | Lakkolit |
| lace | koronka |
| Lace monitor | Waran kolorowy |
| Lacedonia | Lacedonia |
| Lacerta | Jaszczurka |
| Lacertidae | Jaszczurki właściwe |
| Lachesis | Lachesis |
| Lachesis muta | Groźnica niema |
| Lachin | Rejon Łaczyn |
| Lachlan River | Lachlan |
| lachrymator | lakrymator |
| lachrymatory agent | lakrymator |
| Lachrymology | Lakrymologia |
| lack | brak |
| lack (of) | niedostatek |
| Lack of ability | Niekompetencja |
