N
- (Kalutara District) Naranpitiyawa
- (Gampaha District) Narigama
- (Gampaha District) Natuduwa
- (Colombo District) Nawagamuwa
- (Colombo District) Nawala
- (Gampaha District) Nawana
- (Gampaha District) Nawanmahara
- (Colombo District) Navinna
- (Kalutara District) Nawuttuduwa
- (Gampaha District) Naiwala
- (Kalutara District) Neboda
- (Gampaha District) Nedagamuwa
- (Colombo District) Nedimala
- (Gampaha District) Nedungamuwa
- (Gampaha District) Nedurupitiya
- (Kalutara District) Nehinna
- (Gampaha District) Neligama
- (Gampaha District) Nelunpitiya
- (Gampaha District) Neugala
- Ntungamo
- Namasuba
- (Gampaha District) Negombo