Bleiken bei Oberdiessbach is a former municipality in the Bern-Mittelland administrative district in the Canton of Bern in Switzerland . On 1 January 2014 the former municipality of Bleiken bei Oberdiessbach merged into the municipality of Oberdiessbach.

Bleiken bei Oberdiessbach is first mentioned in 1337 as Bleikon. In 1473 it was mentioned simply as villages (Dörfer).

The village was settled rather later than many of the nearby villages. In 1880 a medical spa resort was built in the village.