岩舟町是位于栃木县西南部，属下都贺郡的一个町。2014年4月5日，并入栃木市（2013年8月23日告示）。

位在足尾山地最南端・岩船山周边的町。

Iwafune(岩舟町,Iwafune-machi) was a town located in Shimotsuga District, Tochigi Prefecture, Japan.

As of 2013, the town had an estimated population of 18,152 and a density of 390 persons per km². The total area was 46.74 km².

On April 5, 2014, Iwafune was merged into the expanded city of Tochigi.