Sommerhausen is a municipality and market town in the district of Würzburg in Bavaria, Germany.

It did not belong to the prince-bishop of Würzburg; The inhabitants acknowledged the Reformation, so that Sommerhausen is now a Protestant enclave in the predominantly Catholic Mainfranken.

In 1810, the district of Würzburg, with which it fell back to Bavaria in 1814, came to settle in the area.

The place, embedded in the Valley of the Main among vineyards, has been the hanger for Frankish romanticism for decades.

All buildings in the town center in the narrow, winding streets look back on several hundred years of history.