Sondheim vor der Rhön is a municipality in the district Rhön-Grabfeld, Bavaria, Germany.

The first written proof of Sondheim was on February 27, 789, when it was mentioned in a donation document of the monastery of Fulda.

Until 1945 Sondheim was an enclave of Saxe-Weimar and later Thuringia, and was added to Bavaria due to the military administration after World War II.

The coat of arms shows in the bottom three rows of red and silver blocks, the escutcheon of Henneberg.

To the left is the head of a ram, the symbol animal of the Gebsattel family, as one of the historically important land owners of the area.