The Bibliographical Bulletin of the International Arthurian Society (abbreviated as BBSIA) is the annual publication of the International Arthurian Society. It is also entitled Bulletin Bibliographique de la Société Internationale Arthurienne.
The journal contains notices of scholarly books, articles, and reviews on Arthurian subjects that have appeared during the preceding year, as well as original articles, a news section, and a list of the members of the Society with their addresses.