Horgen (Swiss Standard German pronunciation: [ˈhɔrɡn̩]) is a municipality in the district of Horgen in the canton of Zürich in Switzerland.

It is one of the larger towns along the south bank of the Lake of Zurich.

On 1 January 2018 the former municipality of Hirzel merged into the municipality of Horgen.

Horgen is also the type-site of Switzerland's middle Neolithic archaeological culture. The settlement there, the so-called Horgner Kultur (Horgen culture), produced examples of a type of crude pottery with parallels to the Seine-Oise-Marne culture of northern France. Horgen is first mentioned in 952 as Horga.