Shimonoseki (Japanese: 下関市, Hepburn: Shimonoseki-shi) is a city located in Yamaguchi Prefecture, Japan. With a population of 265,684, it is the largest city in Yamaguchi Prefecture and the fifth-largest city in the Chūgoku region. It is located at the southwestern tip of Honshu facing the Tsushima Strait at the entrance to the Kanmon Straits (also known as the Straits of Shimonoseki) across from the city of Kitakyushu and the island of Kyushu. It is nicknamed the "Fugu Capital" for the locally caught pufferfish, and is the largest harvester of the pufferfish in Japan.