| Lake | County | Latitude | Longitude |
| N Ridge Run | Dukes | 41.367603 | -70.665219 |
| Nagog Brook | Middlesex | 42.518522 | -71.421800 |
| Nantasket Roads | Plymouth | 42.299502 | -70.933042 |
| Nash Hill Reservoir | Hampden | 42.194593 | -72.489480 |
| Nashoba Brook | Middlesex | 42.498274 | -71.410462 |
| Needham Reservoir | Norfolk | 42.270597 | -71.219849 |
| New Bedford Reservoi | Bristol | 41.742838 | -70.910651 |
| New Intake Reservoir | Hampshire | 42.242545 | -72.785339 |
| Nichols Brook | Essex | 42.593244 | -70.976846 |
| Noanet Brook | Norfolk | 42.238322 | -71.261635 |
| Noquochoke Lake | Bristol | 41.651847 | -71.037877 |
| North Reservoir | Middlesex | 42.461145 | -71.114497 |
| Northboro Reservoir | Worcester | 42.327643 | -71.691763 |
| Northfield Mtn Reser | Franklin | 42.649305 | -72.441889 |
| Northhampton Reservo | Franklin | 42.445824 | -72.687884 |
| Norton Reservoir | Bristol | 41.985786 | -71.199033 |
| Norumbega Reservoir | Middlesex | 42.332496 | -71.294751 |
| Norwich Lake | Hampshire | 42.306052 | -72.832372 |
| Norwood Lake | Essex | 42.582294 | -70.870043 |
| Notch Reservoir | Berkshire | 42.670870 | -73.136569 |
| Notown Reservoir | Worcester | 42.538039 | -71.822467 |
| Nottingham Lake | Berkshire | 42.257148 | -73.060001 |
| Nutting Lake | Middlesex | 42.536043 | -71.269002 |