Hergiswil is a municipality in the canton of Nidwalden in Switzerland.

Hergiswil is first mentioned around 1303-09 as ze Hergenswile.

Hergiswil has an area, as of 2006^[update], of 14.2 square kilometers (5.5 sq mi). Of this area, 29.3% is used for agricultural purposes, while 44.4% is forested. Of the rest of the land, 9.7% is settled (buildings or roads) and the remainder (16.6%) is non-productive (rivers, glaciers or mountains).

The municipality is located between the foot of Mount Pilatus and Lake Lucerne.

Hergiswil has a population (as of 31 December 2020) of 5,863. As of 2007^[update], 14.5% of the population was made up of foreign nationals. Over the last 10 years the population has grown at a rate of 11.5%. Most of the population (as of 2000^[update]) speaks German (91.0%), with Italian being second most common ( 2.0%) and French being third ( 1.1%). As of 2008^[update] the gender distribution of the population was 52.2% male and 47.8% female.

As of 2000^[update] there are 2,216 households, of which 1,627 households (or about 73.4%) contain only one or two individuals. 91 or about 4.1% are large households, with at least five members.

In the 2007 federal election the most popular party was the FDP which received 89.1% of the vote. Most of the rest of the votes went to local small right-wing parties (9.3%).

In Hergiswil about 77.7% of the population (between age 25-64) have completed either non-mandatory upper secondary education or additional higher education (either university or a Fachhochschule).