Dreifrankenstein, Territorial marker at intersection of Upper, Middle, and Lower Franconia regions, Germany.

The Dreifrankenstein consists of two separate boundary stones marking where Upper, Middle and Lower Franconia meet. The Old Dreifrankenstein, set in 1892, is a 135 cm sandstone column in woodland near the source of the Reiche Ebrach stream. The New Dreifrankenstein, placed in 1979, is a 280 cm muschelkalk erratic carved with the coats of arms of the three regions, standing on a rise in the Steigerwald.

The Old Dreifrankenstein, a 135 cm sandstone column, was set in 1892 in woodland near the source region of the Reiche Ebrach. The 1972 regional reform shifted the tripoint of Upper, Middle and Lower Franconia about 7 km southeast, so in 1979 the New Dreifrankenstein, a 280 cm muschelkalk erratic bearing the three districts' coats of arms, was laid on a rise in the Steigerwald.

The name Dreifrankenstein means "Three Franconias Stone". The Fränkische Marienweg pilgrimage route passes the new stone, and since 2011 large information panels have described the three Franconian districts and the neighbouring counties. The coats of arms of Upper, Middle and Lower Franconia are carved into the 1979 stone.

The site is easily accessible and offers information panels explaining the three regions and their characteristics. Benches provide rest areas, making it a convenient stop during a walk or drive through the countryside.

The New Dreifrankenstein is a 280 cm glacial erratic of Muschelkalk into which the coats of arms of Upper, Middle and Lower Franconia are carved. A geodetic reference point is mounted on it, and the Fränkische Marienweg pilgrimage route passes by. The Old Dreifrankenstein, a 135 cm sandstone column from 1892, stands about seven kilometres northwest near the source of the Reiche Ebrach.