Lachen

Lachen can refer to:

Places

 * Lachen, Switzerland, a municipality of the canton of Schwyz
 * Lachen railway station in the municipality of Lachen, canton of Schwyz
 * Lachen, Germany, a municipality of Bavaria
 * Lachen, Sikkim – a town in India
 * Lachen River, in India

Other

 * The German and Dutch words for laughing