Beilstein (help·info) is a town in the district of Heilbronn in Baden-Württemberg in southern Germany. It is situated 14 km southeast of Heilbronn. Beilstein is on the Württemberg wine route (Württemberger Weinstraße).
Beilstein is situated in the south of the district of Heilbronn. The town is crossed by the Söhlbach, a tributary of the Bottwar. The communal land of Beilstein includes big parts of the Löwenstein Mountains.
Beilstein developed during the Middle Ages adjacent to Hohenbeilstein Castle, which was built around 1080. After overlordship of the castle passed to the Margraves of Baden in 1234, the settlement was promoted to town status between 1250 and 1288 and is first mentioned as such in 1304. Since then it has changed overlordship several times. Ulrich IV and Eberhard II gave the town to emperor Charles IV, who returned it as a fief. Thereafter until the 18th century, the fief reverted to the next emperor or count before any assumption of office.
Beilstein was also an office and residential town of the Vogt. In the 14th century it was walled. The Reformation came to the town around 1534–35 and a Latin school was founded there in 1540.