| Knik Arm(expression, territory, area, water, alaska) |
| Kori Creek(expression, territory, area, asia) |
| Kuyalnik Estuary(expression, territory, area, water, europe) |
| Kyle of Tongue(expression, territory, europe, scotland) |
| Lac des Allemands(expression, territory, area, water, louisiana) |
| Lafayette River(expression, territory, area, water, virginia) |
| Lagoa dos Patos and Lagoon Mirim(expression, territory, area, water) |
| Laguna Madre(expression, territory, area, water) |
| Lake Beloslav(expression, territory, area, water) |
| Lake Borgne(expression, territory, area, water) |
| Lake Cataouatche(expression, territory, area, water, louisiana) |
| Lake Melville(expression, territory, area, canada) |
| Lake Merritt(expression, territory, area, water) |
| Lake Pontchartrain(expression, territory, area, water, louisiana) |
| Lake Saint Lucia(expression, territory, africa, zone) |
| Lake Salvador(expression, territory, area, water, louisiana) |
| Lake Superior National Estuarine Research Reserve(expression, territory, area, water, wisconsin) |
| Lake Varna(expression, territory, area, water) |
| Llobregat Delta(expression, territory, europe, spain) |
| Looe Estuary(expression, territory, europe, england) |