Namibia
territorial sea: 12 nm
contiguous zone: 24 nm
exclusive economic zone: 200 nm

Nauru
territorial sea: 12 nm
contiguous zone: 24 nm
exclusive economic zone: 200 nm

Navassa Island territorial sea: 12 nm exclusive economic zone: 200 nm

Nepal none (landlocked)

Netherlands
territorial sea: 12 nm
exclusive fishing zone: 200 nm

Netherlands Antilles
territorial sea: 12 nm
exclusive fishing zone: 12 nm

New Caledonia
territorial sea: 12 nm
exclusive economic zone: 200 nm

New Zealand
territorial sea: 12 nm
exclusive economic zone: 200 nm
continental shelf: 200 nm or to the edge of the continental margin

Nicaragua territorial sea: 200 nm continental shelf: natural prolongation

Niger
none (landlocked)