The Yokohama Line is a Japanese railway line of the East Japan Railway Company (JR East) connecting Higashi-Kanagawa Station in Yokohama, Kanagawa and Hachioji Station in Hachioji, Tokyo. The line's name comes from the section between Nagatsuta and Higashi-Kanagawa that runs through the city of Yokohama. Nicknamed the Hama-sen by locals the line serves commuters in the southwestern suburbs of Tokyo and northeastern suburbs of Yokohama.