Located in westernmost part of the main island of Honshu, Yamaguchi shares a border with Shimane and Hiroshima prefectures in the east and is surrounded on the other three sides by the sea, The Japan Sea in the north and west and the Seto Inland Sea to the south.
Yamaguchi and the island of Kyushu are connected by both a bridge and a tunnel from Shimonoseki.
Yamaguchi Ken is famous across Japan for Fugu (puffer fish) cuisine, The Kintaikyo bridge in Iwakuni, Hagiyaki pottery, Ouchi-nuri laquerware and Ouchi family dolls.