The is a railway line in Kanagawa Prefecture, Japan, operated by the private railway operator Sagami Railway (Sotetsu). It connects in Yokohama to in Fujisawa.
Services on the Izumino Line operate as a branch of the Main Line, with most trains running through to and from Yokohama via the Main Line, or branching at Nishiya Station to or from Shin-yokohama via the SÃ Âtetsu Shin-yokohama Line which further connect with other railway systems (see SÃ Âtetsu Shin-Yokohama Line for details).
The first section of the line, between Futamata-gawa and Izumino, opened on April 8, 1976, with Izumi-chà «à  station opening on April 4, 1990. A further extension to Shà Ânandai opened on March 10, 1999. On February 27, 1999, Rapid service trains started operation.
Through services to and from the Tokyu Toyoko Line courtesy of the Shin-yokohama Line began operation on 18 March 2023. Effective this date, through services from Shonandai continue past Hiyoshi on the Tokyu Shin-yokohama Line towards Wakoshi on the Yurakucho Line.
A westward extension from to Kurami Station on the JR East Sagami Line has been proposed. One of the station is to be built near the Keio University Shonan Fujisawa Campus. As a new station is proposed to be built on the Tà Âkaidà  Shinkansen near Kurami, the proposed terminus may become an interchange station with the Shinkansen.