Bad Suderode is a village and former municipality located in the district of Harz within the state of Saxony-Anhalt, Germany. Geographically, it is situated in a valley in the northern region of the Harz mountains along the road connecting Quedlinburg to Friedrichsbrunn.
For administrative purposes, Bad Suderode has been part of the municipality of Quedlinburg since January 1, 2014.