The Tōbu Sano Line (東武佐野線 Tōbu Sano-sen ) is railway line in Japan, operated by the private Tobu Railway company from Tatebayashi Station in Tatebayashi city, Gunma Prefecture to Kuzū Station in Sano, Tochigi Prefecture.
In February 2005, the old city of Sano, the town of Tanuma and the town of Kuzu were merged into the city of Sano, so this line runs within the two cities of Tatebayashi, Gunma and Sano, Tochigi.