| Mud Pond | NH | Lake/Reservoir/Pond | Not Supporting | 1 | 2.07 |
| Mud Pond | NH | Lake/Reservoir/Pond | Not Supporting | 1 | 8.64 |
| Mud Pond | NH | Lake/Reservoir/Pond | Not Supporting | 1 | 5.99 |
| Mud Pond | NH | Lake/Reservoir/Pond | Not Supporting | 1 | 3.65 |
| Mud Pond | NH | Lake/Reservoir/Pond | Not Supporting | 1 | 14 |
| Mud Turtle Pond | NH | Lake/Reservoir/Pond | Not Supporting | 1 | 9.81 |
| Muddy Pond | NH | Lake/Reservoir/Pond | Not Supporting | 1 | 2.31 |
| Muddy Pond | NH | Lake/Reservoir/Pond | Not Supporting | 1 | 4.70 |
| Mudgetts Pond | NH | Lake/Reservoir/Pond | Not Supporting | 1 | 9.90 |
| Munn Pond | NH | Lake/Reservoir/Pond | Not Supporting | 1 | 45 |
| Namaske Lake | NH | Lake/Reservoir/Pond | Not Supporting | 6 | 121 |
| Nancy Pond | NH | Lake/Reservoir/Pond | Not Supporting | 1 | 5.00 |
| Nashua River - Jackson Plant Dam Pond | NH | Impoundment | Not Supporting | 3 | 40 |
| Nashua River - Mine Falls Dam Pond | NH | Impoundment | Not Supporting | 5 | 60 |
| Nashua River - Nashua Canal | NH | Impoundment | Not Supporting | 2 | 42 |
| Nashua River - Nashua Canal Dike | NH | Impoundment | Not Supporting | 5 | 42 |
| Nathan Pond | NH | Lake/Reservoir/Pond | Not Supporting | 1 | 22 |
| Naticook Lake | NH | Lake/Reservoir/Pond | Not Supporting | 2 | 62 |
| Naticook Lake - Camp Sargent Beach | NH | Lake/Reservoir/Pond | Not Supporting | 1 | 1.38 |
| Naticook Lake - Naticook Day Camp Beach | NH | Lake/Reservoir/Pond | Not Supporting | 1 | 1.38 |
| Naticook Lake - Wasserman Park Beach | NH | Lake/Reservoir/Pond | Not Supporting | 2 | 0.49 |
| Nay Pond | NH | Lake/Reservoir/Pond | Not Supporting | 1 | 50 |
| Needle Shop Brook - Needle Shop Dam II | NH | Impoundment | Not Supporting | 1 | 1.00 |
| Nesenkeag Brook | NH | Impoundment | Not Supporting | 1 | 0.50 |
| Nesenkeag Brook | NH | Impoundment | Not Supporting | 1 | 3.00 |
| New Pond | NH | Lake/Reservoir/Pond | Not Supporting | 6 | 31 |
| New Pond-Sherwood Forest Shores Beach 1 | NH | Lake/Reservoir/Pond | Not Supporting | 1 | 0.34 |
| New Pond-Sherwood Forest Shores Beach 2 | NH | Lake/Reservoir/Pond | Not Supporting | 1 | 0.34 |
| New Pond-Sherwood Forest Shores Beach 3 | NH | Lake/Reservoir/Pond | Not Supporting | 1 | 0.34 |
| New Wilton Reservoir | NH | Lake/Reservoir/Pond | Not Supporting | 1 | 22 |
| Newell Pond | NH | Lake/Reservoir/Pond | Not Supporting | 2 | 14 |
| Newfound Lake | NH | Lake/Reservoir/Pond | Not Supporting | 3 | 4,440 |
| Newfound Lake - Camp Berea Beach | NH | Lake/Reservoir/Pond | Not Supporting | 1 | 1.38 |
| Newfound Lake - Camp Masquebec Hill Beach | NH | Lake/Reservoir/Pond | Not Supporting | 1 | 1.38 |
| Newfound Lake - Camp Mayhew Beach | NH | Lake/Reservoir/Pond | Not Supporting | 1 | 1.38 |
| Newfound Lake - Camp Mowglis Beach | NH | Lake/Reservoir/Pond | Not Supporting | 1 | 1.38 |
| Newfound Lake - Camp Onaway Beach | NH | Lake/Reservoir/Pond | Not Supporting | 1 | 1.38 |
| Newfound Lake - Camp Pasquaney Beach | NH | Lake/Reservoir/Pond | Not Supporting | 1 | 1.38 |
| Newfound Lake - Camp Wi-Co-Su-Ta Beach | NH | Lake/Reservoir/Pond | Not Supporting | 2 | 1.38 |
| Newfound Lake - Cummings Beach | NH | Lake/Reservoir/Pond | Not Supporting | 1 | 4.97 |
| Newfound Lake - Hebron Town Beach | NH | Lake/Reservoir/Pond | Not Supporting | 1 | 1.38 |
| Newfound Lake - Nutting's Beach | NH | Lake/Reservoir/Pond | Not Supporting | 1 | 1.28 |
| Newfound Lake - Red Fox Village Beach | NH | Lake/Reservoir/Pond | Not Supporting | 1 | 1.38 |
| Newfound Lake - Town Beach | NH | Lake/Reservoir/Pond | Not Supporting | 1 | 4.97 |
| Newfound Lake - Wellington State Park Beach | NH | Lake/Reservoir/Pond | Not Supporting | 1 | 6.06 |
| Newfound River | NH | Impoundment | Not Supporting | 1 | 0.23 |
| Newfound River | NH | Impoundment | Not Supporting | 1 | 1.13 |
| Newfound River - Ipc Upper Dam Pond | NH | Impoundment | Not Supporting | 1 | 6.53 |
| Nilus Brook | NH | Impoundment | Not Supporting | 1 | 1.03 |
| Nippo Pond | NH | Lake/Reservoir/Pond | Not Supporting | 3 | 85 |