The 65th World Science Fiction Convention (Worldcon), also known as Nippon 2007, was held on 30 August–3 September 2007 at the Pacifico Yokohama Convention Center and adjoining hotels in Yokohama, Japan. The organising committee was chaired by Hiroaki Inoue. This convention was also the 46th Annual Nihon SF Taikai. This was the first Worldcon held in Asia.