Buin From Wikipedia the free encyclopedia Buin may refer to: Buin, Chile Buin, Iran (disambiguation) Buin, Papua New Guinea on Bougainville Island Buin Rural LLG on Bougainville Island See also[edit] Bouin (disambiguation) Topics referred to by the same termThis disambiguation page lists articles about distinct geographical locations with the same name. If an internal link led you here, you may wish to change the link to point directly to the intended article.