The Sanin Main Line is a railway line (trunk line) operated by the West Japan Railway Company (JR West) that connects Kyoto Station, located in Shimogyo Ward of Kyoto City, Kyoto Prefecture, and Hatabu Station, located in Shimonoseki City, Yamaguchi Prefecture, via Fukuchiyama Station, Tottori Station, Yonago Station, Izumoshi Station and Nagatoshi Station (trains bound for Hatabu Station, however, run farther to Shimonoseki Station).
山陰本線（さんいんほんせん）は、京都府京都市下京区の京都駅から福知山駅、鳥取駅、米子駅、出雲市駅、長門市駅を経て山口県下関市の幡生駅に至る西日本旅客鉄道（JR西日本）の鉄道路線（幹線）である（ただし幡生側の列車は下関駅まで運転）。