Heidfeld is a Naturschutzgebiet (nature reserve) in Lower Saxony in the area of Engden in the Schüttorf Samtgemeinde in the County of Bentheim and the municipality of Emsbüren in Landkreis Emsland.
The nature reserve is designated NSG WE 241 and has an area of 200 hectares.
Currently, the forest is mostly mixed pine interspersed with oak and beech trees.
The nature reserve is between Schüttorf und Emsbüren and to the west of A 31.
It is located in a protected forest area, that is also home to an environmentally friendly forestry industry.