Reutigen (Swiss Standard German pronunciation: [ˈrɔʏtɪgn̩]) is a municipality in the administrative district of Thun in the Canton of Bern in Switzerland . On 1 January 2024 the former municipality of Zwieselberg merged to form the municipality of Reutigen.

Reutigen is first mentioned about 1300 as Rötingen.

Around 1308 the Burgistein family acquired the entire Strättligen Herrschaft which included Reutigen. In the following decades, the village passed through the hands of several other local nobles. Around 1486 and 1494, the Bubenberg and Schütz families sold their respective portions of the village to the city of Bern.