Kienersrüti is a former municipality in the administrative district of Thun in the canton of Bern in Switzerland.

A regional popular saying names it "the one street lantern town".

Before the merger, Kienersrüti had a total area of .8 km2 (0.31 sq mi).

[2] Of this area, 0.65 km2 (0.25 sq mi) or 87.8% is used for agricultural purposes, while 0.09 km2 (22 acres) or 12.2% is forested.

In the 2007 election the most popular party was the SPS which received 30% of the vote.