| Luís Loureiro | Luís Loureiro |
| Luís Miguel Brito | Miguel Monteiro |
| Luís o Germânico | Louis the German |
| Luís Oliveira | Luis Oliveira |
| Luís Oliveira Gonçalves | Luís Oliveira Gonçalves |
| Luís Orione | Luigi Orione |
| Luís Posavski | Ljudevit Posavski |
| Luís V de França | Louis V of France |
| Luís Vaz de Camões | Luís de Camões |
| Luís Vaz de Torres | Luis Váez de Torres |
| Luís VI de França | Louis VI of France |
| Luís Victor da Áustria | Archduke Ludwig Viktor of Austria |
| Luís VII de França | Louis VII of France |
| Luís VIII de França | Louis VIII of France |
| Luís X de França | Louis X of France |
| Luís XI de França | Louis XI of France |
| Luís XII de França | Louis XII of France |
| Luís XIII de França | Louis XIII of France |
| Luís XIV de França | Louis XIV of France |
| Luís XV de França | Louis XV of France |
| Luís XVI de França | Louis XVI of France |
| Luís XVII de França | Louis XVII of France |
| Luís XVIII de França | Louis XVIII of France |
| Luísa Abbema | Louise Abbéma |
| Luísa da Suécia | Lovisa of Sweden |
| Luísa de Gusmão | Luisa of Medina-Sidonia |
| Luísa de Marillac | Louise de Marillac |
| Luísa de Sabóia | Louise of Savoy |
| Luísa de Saxe-Gota-Altenburgo | Louise of Saxe-Gotha-Altenburg |
| Luísa Diogo | Luisa Diogo |
| Luísa dos Países Baixos | Princess Louise of the Netherlands |
| Luísa Ulrica da Prússia | Louisa Ulrika of Prussia |
| Luíza Sá | Luiza Sá |
| Lučenec | Lučenec District |
| Lužice | Lusatia |
| LVDT | Linear variable differential transformer |
| Lviv | Lviv |
| LVM | Logical volume management |
| LVMH | LVMH |
| LVS | Linux Virtual Server |
| Lybidska | Lybidska |
| Lycaenidae | Lycaenidae |
| Lycaste | Lycaste |
| Lycianthes | Lycianthes |
| Lyciasalamandra | Lyciasalamandra |
| Lycksele | Lycksele Municipality |
| Lycophyta | Lycopodiophyta |
| Lycopodiopsida | Lycopodiopsida |
| Lycopus | Lycopus |
| Lycos | Make LOVE not SPAM |
| Lydia Maria Child | Lydia Child |
| Lygia Bojunga Nunes | Lygia Bojunga Nunes |
| Lyman Spitzer | Lyman Spitzer |
| Lymantriidae | Lymantriidae |
| Lyme Hall | Lyme Park |
