| Laan (4) |
| Laan, van der (2) |
| Laans |
| Laarhuis |
| Laarhuis, van (2) |
| Laarman |
| Labije, de (2) |
| Laen, van der (2) |
| Lafalje |
| Lagemans |
| Lagerwaart (2) |
| Lahngau, von der |
| Lahr |
| Lákee (2) |
| Lambergh, van |
| Lambertink |
| Lamberts (10) |
| Lamers (2) |
| Lammering |
| Lammers (4) |
| Lammertink (7) |
| Lammerts (2) |
| Lamotius |
| Lamson, van |
| Landeron |
| Landt |
| Landweer |
| Lane van Tetrode, van der |
| Lang, de (2) |
| Lange, de (3) |
| Langedoe |
| Langelaan (3) |
| Langelaen (9) |
| Langen |
| Langendam (2) |
| Langervelt |
| Langevelt |
| Langkamp |
| Lans (2) |
| Lansen |
| Lanset |
| Lansink (2) |
| Lansom |
| Laon, van |
| Lap (3) |
| Lapré (3) |
| Laps |
| Lares |
| Larsdogter |
| Latour |
| Lauderus |
| Laurier |
| Lausnitz, van de |
| Lazier |
| Leck, van de (2) |
| Lecke, van der |
| Lede, van der (2) |
| Lee, van der (3) |
| Leede, van der |
| Leeflang |
| Leek (29) |
| Leeman (2) |
| Leemkuil (2) |
| Leenders |
| Leenderts (3) |
| Leenting, van |
| Leer, van der |
| Leerdam, van |
| Leeuw, de (19) |
| Leeuwaarden, van |
| Leeuwen, van (76) |
| Leeuwenschilt |
| Leewerden, van |
| Leheux |
| Leijen (3) |
| Leijsen (2) |
| Leiting (2) |
| Lelieveld |
| Lelieveldt, van |
| Lelij, van der (4) |
| Lely, van der (3) |
| Lemmen |
| Lemmers |
| Lenderinck |
| Lenderink |
| Lengen |
| Lensen (2) |
| Lensing |
| Lensink (4) |
| Lenteren, van (4) |
| Lenting (2) |
| Lentink (6) |
| Lentz |
| Lenzen |
| Lepel, van (2) |
| Lesen |
| Letterie (2) |
| Leunk (3) |
| Leuring |
| Leurink (2) |
| Leurs (2) |
| Leusink (2) |
| Levering, van |
| Leziers |
| Liedekercken, de |
| Liefde, de |
| Liemt, van |
| Liesenaar |
| Lieshout (2) |
| Lieuwes (2) |
| Lievaart |
| Lievendag |
| Ligthart (5) |
| Ligtigheyt |
| Lijbers (2) |
| Lijsen |
| Lijster, de (2) |
| Limburg, van |
| Limmen (5) |
| Lina (3) |
| Linde, van der (3) |
| Lindeboom |
| Lindeman |
| Linden, van der (6) |
| Lindert, te (2) |
| Lindwurm |
| Lingeman (2) |
| Lingerak |
| Linie, de (2) |
| Linkletter, de |
| Linssen (2) |
| Linterman |
| Linthout (7) |
| Linthout, van (2) |
| Linzgau, von der (5) |
| Lip, van der |
| Lippe, von |
| Lippe, zur |
| Lisdonck, van |
| Lit, van |
| Littink |
| Lobach (3) |
| Lodder (3) |
| Loderus |
| Lodewijk (5) |
| Lodewijkx |
| Loef |
| Loenen, van |
| Logtenberg |
| Lok (3) |
| Lokhorst |
| Lokman |
| Lolle |
| Loman (3) |
| Lomans |
| Lombardije, van (2) |
| Looij, van |
| Loon, van (3) |
| Loors |
| Loose, de (2) |
| Loose (Verspeck), de |
| Los (4) |
| Loterman (2) |
| Lotharingen, van (2) |
| Lotharingen, von (3) |
| Louter (2) |
| Louw, ter (2) |
| Louw, van der (2) |
| Louwen |
| Lubbers (2) |
| Lubberts (3) |
| Lubbertsen (4) |
| Lucas (2) |
| Luchtigheijt |
| Luchtigheyt |
| Luck |
| Lueks (5) |
| Luenenberg |
| Lugten (2) |
| Lugtigheid (10) |
| Lugtigheijt (11) |
| Lugtigheit (2) |
| Lugtigheyt |
| Luiendijk |
| Luijendijk |
| Luijimes |
| Luijk, van (2) |
| Luijmes |
| Lunenberg (2) |
| Lunet |
| Lusink (2) |
| Lutgerhorst |
| Lutterbey |
| Luunk |
| Luxemburg, van (6) |