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- (Gampaha District) Nungamugoda
- (Gampaha District) Nugagasgodella
- (Gampaha District) Nugagahahandiya
- (Kalutara District) Namalgama
- (Gampaha District) Nalayandaluwa
- (Kalutara District) Neluketiya
- (Kalutara District) Nayakanda
- (Kalutara District) Nimalagama
- (Kalutara District) Nahalagama
- (Gampaha District) Nittambuwa
- (Colombo District) New Bazaar
- (Gampaha District) Nikahetikanda
- (Colombo District) Nikape
- (Gampaha District) Nikawala
- (Kalutara District) Niggaha
- (Gampaha District) Nilamahara
- (Colombo District) Neelammahara
- (Gampaha District) Nilpanagoda
- (Colombo District) Niripola
- (Gampaha District) Naranwala
- (Gampaha District) Niwandama North
- (Colombo District) Niwanthidiya
- (Colombo District) Nivungama
- (Colombo District) Niyandagala
- (Gampaha District) Nugadeniya
- (Kalutara District) Nugagoda
- (Gampaha District) Nugape
- (Colombo District) Nugegoda
- (Gampaha District) Nungomuwa
- (Colombo District) Neluwattuduwa