Shiobara (塩原町; -machi) was a town located in Nasu District, Tochigi, Japan.
On January 1, 2005 Shiobara was merged with the town of Nishinasuno, also from Nasu District, and the old city of Kuroiso, to form the new city of Nasushiobara.
In 2003, the town had an estimated population of 8,694 and a density of 45.74 persons per km². The total area was 190.07 km².