Places beginning with BO in Milne Bay, Papua New Guinea:

Boagis Boboni Bodela Bogala Bogala Baubau Bogilabaubua Boilavi Boitalu Boitoi Bolubolu Bomasea Bonagai Bonarava

Bonarua Bonenau Bonenepi Boniao Bonivat Boroai Borovia Bosadidi Bou Bouleia Bowabu Bowadi