The Sayama Line (狭山線, Seibu Sayama-sen) is a commuter railway line in Saitama Prefecture, Japan, operated by the private railway operator Seibu Railway. The 4.2 km (2.6 mi) line extends from Nishi-Tokorozawa Station on the Seibu Ikebukuro Line to Seibukyūjō-mae Station in Tokorozawa, Saitama.

All stations are located in Tokorozawa, Saitama. Abbreviations here are for the table below, not formally used.

  Local (各停, Kakutei) Stops at all stations.

  Limited Express (特急, Tokkyū) (LE) :Ikebukuro to Seibu Chichibu, trains named Chichibu (ちちぶ), Musashi (むさし), with supplementary limited express charge.

The line and its two stations opened on 1 May 1929, initially electrified at 1,200 V DC.^{[citation needed]} This was raised to 1,500 V DC in 1952.^{[citation needed]}

Station numbering was introduced on all Seibu Railway lines during fiscal 2012, with Seibu Sayama Line stations numbered prefixed with the letters "SI" (part of the Seibu Ikebukuro group of lines).

This article incorporates material from the corresponding article in the Japanese Wikipedia