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

Wolfhalden, Heiden and Lutzenberg originally were parts of a single municipality named the Kurzenberg.

In 1658 the Kurzenberg was split into the three separate municipalities in defiance of the canton government; their borders were officially established in 1666-7.

Of the rest of the land, 11.4% is settled (buildings or roads) and the remainder (0.1%) is non-productive (rivers, glaciers or mountains).

Most of the population (as of 2000[update]) speaks German (94.4%), with Serbo-Croatian being second most common (1.0%) and Italian being third ( 0.9%).