Längenbühl

{{Infobox Swiss town

|subject_name= Längenbühl

|municipality_type= former

|imagepath_coa=Längenbühl-coat of arms.svg

|canton= Bern

|district= Thun

|postal_code= 3636|iso-code-region= CH-BE

|coordinates = {{coord|46|45|N|7|32|E|display=inline,title}}

|elevation= 654

|area= 2.65

|population=363|populationof=January 2005|popofyear=2005

|mayor=

|website= www.laengenbuehl.ch

|neighboring_municipalities=

|}}

Längenbühl is a village in the canton of Bern, Switzerland. The former municipality of the district of Thun merged with Forst on January 1, 2007 to form Forst-Längenbühl.

There are three smaller lakes in Längenbühl: Dittligsee, Geistsee and a smaller pond.