Grendelbruch (French pronunciation: [gʁɛndəlbʁyʃ] ⓘ[3][4] or [gʁɛndəlbʁux][5]) is a commune in the Bas-Rhin department in Grand Est in north-eastern France.

[6] Grendelbruch is a mountain village set in the forested region to the west of Obernai.

The first surviving written mention of Grendelbruch appears in a papal bull dated November 28, 1049, wherein the pope confirms that the Abbey of Altdorf may receive the tithes from "Grundelbac".

Grendelbruch was liberated from German occupation on November 26, 1944 by the Second Battalion of the Thirtieth Infantry Regiment of the US Army.

Significant further fighting took place in the forest surrounding the village.