B
- (Kalutara District) Bokkegama
- (Kalutara District) Begamuwa
- (Colombo District) Beddegedaramalla
- (Kalutara District) Batuwita North
- (Gampaha District) Batuwatta East
- (Colombo District) Batuwandara
- (Kalutara District) Batugampala
- (Gampaha District) Batepola
- (Gampaha District) Batepola
- (Gampaha District) Batepola
- (Colombo District) Batawala
- (Gampaha District) Bataliya
- (Colombo District) Batakettara
- (Kalutara District) Batagoda
- (Gampaha District) Batagama South
- (Gampaha District) Batagama North
- (Kalutara District) Baruhupola
- (Gampaha District) Barawawila
- (Kalutara District) Bappugoda
- (Gampaha District) Banduragoda
- (Gampaha District) Bandarawatta
- (Kalutara District) Bandaragama
- (Gampaha District) Bandarabatawala
- (Kalutara District) Bamunumulla
- (Gampaha District) Bambukuliya
- (Gampaha District) Baliwila
- (Gampaha District) Balawala
- (Gampaha District) Balatawa
- (Gampaha District) Balagalla
- (Gampaha District) Balabowa