Sonnschied is an Ortsgemeinde – a municipality belonging to a Verbandsgemeinde, a kind of collective municipality – in the Birkenfeld district in Rhineland-Palatinate, Germany. It belongs to the Verbandsgemeinde of Herrstein, whose seat is in the like-named municipality.
The municipality lies in the southern Hunsrück at the edge of the Hahnenbach valley. From the village, there is an outstanding view of the Lützelsoon (a small, wooded, hill range).
Sonnschied borders in the north on the municipality of Bundenbach, in the northeast on the municipality of Bruschied, in the east on the municipality of Hennweiler, in the southeast on the municipality of Hahnenbach, in the south on the municipality of Griebelschied and in the west on the municipality of Wickenrodt. Sonnschied also meets the municipality of Niederhosenbach at a single point in the southwest.
Also belonging to Sonnschied is the outlying homestead of Birkenmühle.