| Lake | County | Latitude | Longitude |
| Kagan Lake | Orange | 41.395075 | -74.583236 |
| Kaikout Kill | Albany | 42.706327 | -73.885267 |
| Kasoag Lake | Oswego | 43.473298 | -75.922647 |
| Kayuta Lake | Oneida | 43.409360 | -75.186563 |
| Keenan Reservoir | Warren | 43.330503 | -73.756085 |
| Kees Lake | Sullivan | 41.820406 | -74.703282 |
| Kellogg Reservoir | Montgomery | 42.981036 | -74.179380 |
| Kemeys Cove | Westchester | 41.139285 | -73.866580 |
| Kenoza Lake | Sullivan | 41.727081 | -74.946194 |
| Kenozia Lake | Ulster | 41.989983 | -74.172216 |
| Kensico Reservoir | Westchester | 41.098793 | -73.750296 |
| Kent Lake | Putnam | 41.505078 | -73.706212 |
| Kent Reservoir | Chautauqua | 42.307277 | -79.560050 |
| Kentwood Lake | Putnam | 41.484250 | -73.695172 |
| Keuka Lake | Steuben | 42.528159 | -77.140368 |
| Kiamesha Lake | Sullivan | 41.676773 | -74.666477 |
| Kibby Lake | Oswego | 43.269494 | -75.966463 |
| Kimogener Point | Suffolk | 40.990276 | -72.483186 |
| Kinch Reservoir | Orange | 41.433910 | -74.543477 |
| Kinderhook Lake | Columbia | 42.452209 | -73.655811 |
| Kinderogen Lake | Westchester | 41.157817 | -73.807878 |
| Kings Flowage | Hamilton | 43.678802 | -74.233247 |
| Kingston Reservoir N | Ulster | 42.014043 | -74.067682 |
| Kingston Reservoir N | Ulster | 42.037315 | -74.094228 |
| Kingston Reservoir N | Ulster | 42.010966 | -74.072927 |
| Kirk Lake | Putnam | 41.388776 | -73.752776 |
| Kissena Lake | Queens | 40.747235 | -73.804554 |
| Kiwanis Lake | Clinton | 44.801039 | -73.651137 |
| Kiwassa Lake | Franklin | 44.293316 | -74.159896 |
| Klondike Reservoir | Herkimer | 43.234699 | -74.782787 |
| Knapp Reservoir | Fulton | 43.233842 | -74.647666 |
| Knapps Lake | Suffolk | 40.731690 | -73.201255 |
| Knapps Long Lake | Fulton | 43.244434 | -74.614837 |
| Knickerbocker Lake | Columbia | 42.460711 | -73.686599 |
| Koinonia Lake | Sullivan | 41.541991 | -74.831856 |
| Korby Lake | Orange | 41.395097 | -74.248851 |
| Kramers Lake | Sullivan | 41.809129 | -74.859716 |
| Kyser Lake | Fulton | 43.067943 | -74.771444 |