| Lowlands | Scottish Lowlands |
| Lowrider | Lowrider |
| Loxocemus bicolor | Loxocemidae |
| Loxodon | Sliteye shark |
| Loxosceles | Recluse spider |
| Loxosceles reclusa | Brown recluse spider |
| Loy Kratong | Loy Krathong |
| Loya Jirga | Loya jirga |
| loyal | honest |
| Loyal to the Game | Loyal to the Game |
| loyaliste | loyalist |
| loyauté | loyalty |
| loyer | rent |
| Loyer d’abonnement | Rent |
| Loyola de Palacio | Loyola de Palacio |
| Lozenets | Lozenets |
| Loznica | Loznica |
| Lozère | Lozère |
| Loßburg | Loßburg |
| Loèche | Leuk |
| Loèche-les-Bains | Leukerbad |
| Loïc Wacquant | Loïc Wacquant |
| Loïe Fuller | Loie Fuller |
| Loïno | Loyno |
| Loïs Lane | Lois Lane |
| Loúis Tsátoumas | Louis Tsatoumas |
| LPGA | LPGA |
| LR Ahlen | Rot-Weiß Ahlen |
| LS | LS |
| LSD | LSD |
| LSI Logic | LSI Corporation |
| LTE International Airways | LTE International Airways |
| LTO | Linear Tape-Open |
| LTU Arena | LTU Arena |
| LTU International Airways | LTU International |
| Lu Chen | Chen Lu |
| Lu Ji | Lu Ji |
| Lu Shan | Mount Lu |
| Lu Xun | Lu Xun |
| Lualaba | Lualaba River |
| Luanda | Luanda |
| Luang Prabang | Luang Prabang |
| Luapula | Luapula River |
| Luarca | Luarca |
| LUAZ | LuAZ |
| Luba Goy | Luba Goy |
| Lubaantun | Lubaantun |
| Lubango | Lubango |
| Lubartów | Lubartów |
| Lubatchov | Lubaczów |
| Lubersac | Lubersac |
| Lublin | Lublin |
| Lubna Agha | Lubna Agha |
| Lubombo | Lubombo |
| Lubomyr Husar | Lubomyr Husar |
| Luboslav Penev | Luboslav Penev |
| Luboń | Luboń |
| lubricilleux | slithy |
| lubricité | salaciousness |
| lubrifiant | lubricant |
| Lubrifiant anatomique | Personal lubricant |
| lubrification | lubrication |
| lubrifier | oil |
| lubrique | lewd |
| Lubumbashi | Lubumbashi |
| Luc | Luke the Evangelist |
| Luc Besson | Luc Besson |
| Luc Bondy | Luc Bondy |
| Luc Montagnier | Luc Montagnier |
| Luc Tuymans | Luc Tuymans |
| Luc-Julien-Joseph Casabianca | Luc-Julien-Joseph Casabianca |
| Luca Badoer | Luca Badoer |
| Luca Cambiaso | Luca Cambiasi |
| Luca della Robbia | Luca della Robbia |
| Luca di Montezemolo | Luca di Montezemolo |
| Luca Giordano | Luca Giordano |
| Luca Pacioli | Luca Pacioli |
| Luca Signorelli | Luca Signorelli |
| Luca Toni | Luca Toni |
| Luca Turilli | Luca Turilli |
| Lucain | Marcus Annaeus Lucanus |
| Lucane | Lucanus cervus |
| lucane cerf-volant | stag beetle |
| Lucanie | Lucania |
| Lucaniens | Lucani |
| Lucanus | Lucanus |
| lucarne | louver |
| Lucas | Lukas |
| Lucas Black | Lucas Black |
| Lucas Castroman | Lucas Castromán |
| Lucas Cranach le Jeune | Lucas Cranach the Younger |
| Lucas Leiva | Lucas Pezzini Leiva |
| Lucas Papademos | Lucas Papademos |
| Lucas Pezzini Leiva | Lucas Pezzini Leiva |
| Lucas van Leyden | Lucas van Leyden |
| LucasArts | LucasArts |
| Lucca | Lucca |
| Luce Irigaray | Luce Irigaray |
| Lucene | Lucene |
| Lucens | Lucens |
| Lucent Technologies | Lucent Technologies |
| Lucerne | Lucerne |
| Lucero Hogaza | Lucero |
| Lucey | Lucey |
| Lucha libre | Lucha libre |
| Luchino Visconti | Luchino Visconti |
| Luchow | Lüchow |
| Luchsingen | Luchsingen |
| Luchta | Luchtaine |
| Lucia Bosé | Lucia Bosé |
| Lucia di Lammermoor | Lucia di Lammermoor |
| Lucia Popp | Lucia Popp |
| Lucian Freud | Lucian Freud |
| Lucian Pintilie | Lucian Pintilie |
| Luciano Berio | Luciano Berio |
| Luciano Burti | Luciano Burti |
| Luciano Floridi | Luciano Floridi |
| Luciano Gabriel Figueroa | Luciano Figueroa |
| Luciano Galletti | Luciano Galletti |
| Luciano Laurana | Luciano Laurana |
| Luciano Liggio | Luciano Leggio |
| Luciano Pavarotti | Luciano Pavarotti |
| lucide | clear |
| lucidité | clarity |
| Lucie de Syracuse | Saint Lucy |
| Lucie de Tripoli | Lucia of Tripoli |
| Lucie Silvas | Lucie Silvas |
| Lucien Bonaparte | Lucien Bonaparte |
| Lucien Capet | Lucien Capet |
| Lucien de Samosate | Lucian |
| Lucien Febvre | Lucien Febvre |
| Lucien Laurent | Lucien Laurent |
| Lucien Lévy-Bruhl | Lucien Lévy-Bruhl |
| Lucien Muller | Lucien Muller |
| Lucien Tesnière | Lucien Tesnière |
| Lucien Van Impe | Lucien Van Impe |
