| labirin karst | |
| laccolith | |
| laguna | |
| lahan basah | |
| lahar | |
| lahar | |
| laju selang adiabatik jenuh | |
| laju selang kering adiabatik | |
| lalu lintas | |
| lampiran | |
| lanau | |
| landas kontinen | |
| Landschaft | |
| langkah | |
| langsung ke kota | |
| lanskap budaya | |
| lanskap yang diperebutkan | |
| lapangan terbuka | |
| lapili | |
| lapisan | |
| lapisan batas | |
| lapisan batas permukaan | |
| lapisan batas planet | |
| lapisan batas turbulen | |
| Lapisan Ekman | |
| lapisan es | |
| larutan | |
| laterit | |
| latifundium | |
| latosol | |
| Laurasia | |
| laut teritorial | |
| layanan keuangan, geografi | |
| layu | |
| Lebensraum | |
| ledakan ekologi | |
| lee | |
| lee gelombang | |
| lee palung | |
| Lembah berbentuk U. | |
| lembah buta | |
| lembah gantung | |
| lembah keretakan | |
| lembah kering | |
| lembah terowongan | |
| lempung | |
| lengket | |
| lengkungan | |
| lensa es | |
| lenticularis | |
| lereng | |
| lereng curam | |
| letusan celah | |
| Letusan Hawaii | |
| letusan plinian | |
| Letusan strombolian | |
| letusan vulcanian | |
| lichenometry | |
| liksiviasi | |
| liku | |
| limnologi | |
| limpasan curah hujan | |
| lingkaran besar | |
| lingkaran cahaya | |
| lingkungan | |
| lingkungan Hidup | |
| lingkungan perilaku | |
| lingkunganisme | |
| lingkup pengaruh | |
| lipat gunung | |
| litifikasi | |
| litologi | |
| litosfer | |
| Little Ice Age | |
| Loch Lomond Stadial | |
| loess | |
| lokal | |
| lokasi | |
| lokasi optimal | |
| lokasi sub-optimal | |
| longsoran | |
| longsoran batu | |
| lopolith.dll | |
| luar angkasa | |
| lubang angin | |
| lubang ketel | |
| lubang menelan | |
| lubang sembur | |
| lubang wastafel | |
| Luminescence Dating | |
| lumpur datar | |
| lunette | |
| lynchet | |
| lysimeter | |
