Bühler is a municipality in the canton of Appenzell Ausserrhoden in Switzerland.

Of the rest of the land, 10.6% is settled (buildings or roads) and the remainder (0.7%) is non-productive (rivers, glaciers or mountains).

[4] The municipality is located in the Appenzell Mittelland on the north side of the Rotbachtal.

Most of the population (as of 2000[update]) speaks German (84.2%), with Italian being second most common ( 3.6%) and Serbo-Croat being third ( 2.7%).

[6] The age distribution, as of 2000[update], in Bühler is; 155 people or 9.7% of the population are between 0–6 years old.

[4] The historical population is given in the following table:[3] Bühler is linked to the city of St. Gallen and Appenzell by the Appenzell–St.