Diekholzen is a village and a municipality in the district of Hildesheim, in Lower Saxony, Germany.

It is situated approximately 6 km southwest of Hildesheim on the Beuster, a tributary of the Innerste.

The largest village of the municipality is Diekholzen with an administration building, a school, a hospital, several shops, a supermarket, some restaurants and a hotel.

Several times a day, each village of the municipality is accessible from Hildesheim and from Alfeld by bus.

This Hildesheim district location article is a stub.