The Bad Friedrichshall salt mine is a salt and show mine in the Baden-Württemberg city of Bad Friedrichshall.
Today's Bad Friedrichshall salt mine is the second salt mine in the history of Bad Friedrichshall.
After rock salt was drilled in what is now Bad Friedrichshall-Jagstfeld in 1816 and a boiling house with a preheating and boiling pan, a brine storage tank and a drying room had been built, production began in 1818.
From 1854 to 1859 a shaft was sunk for salt mining. However, the mine collapsed in 1895 and was flooded. Today the Schachtsee exists on the site of the former shaft.
In 1896, the shaft in what is now Bad Friedrichshall-Kochendorf was sunk as a second salt mine. It was named King Wilhelm II and was put into operation in 1899.
In 1944 a concentration camp was set up in Bad Friedrichshall, the Kochendorf concentration camp, whose prisoners were supposed to set up an armaments factory in the Bad Friedrichshall salt mine.
In 1984 the rock salt mines Heilbronn and Bad Friedrichshall were connected underground. The König Wilhelm II shaft was renovated between 1986 and 1988 and equipped with a new conveyor system.