Nienborstel

{{Infobox German location

|image_photo =

|image_coa = DEU Nienborstel COA.svg

|coordinates = {{coord|54|8|N|9|37|E|format=dms|display=inline,title}}

|image_plan = Nienborstel in RD.png

|state = Schleswig-Holstein

|district = Rendsburg-Eckernförde

|Amt = Mittelholstein

|elevation = 16

|area = 16.37

|postal_code = 24819

|area_code = 04871 + 04874 + 04875

|licence = RD

|Gemeindeschlüssel = 01 0 58 113

|website =

|mayor = Uwe Reimers

}}

Nienborstel is a municipality in the district of Rendsburg-Eckernförde, in Schleswig-Holstein, Germany.