Klingenberg am Main is a town in the Miltenberg district in the Regierungsbezirk of Lower Franconia (Unterfranken) in Bavaria, Germany.

A Roman worship stone, an early mediaeval circular rampart and the Grubinger Kirchhof (churchyard) on the road to Großheubach, likely going back to Alamannic times, are the oldest witnesses to Klingenberg's history.

In the 2nd century, the Romans built the border fortifications of the Limes Germanicus through Germany, which ran along the Trennfurt side of the Main.

The Staufen-era Clingenburg [de] was built around 1170 by Conradus Colbo, who was cup-bearer to Emperor Friedrich Barbarossa.

[5] After the Bickenbachs died out in 1500, the town, castle and lordly domain passed to the Archbishop of Mainz.

Furthermore, among other things, a lookout tower, a bridge across the Main, a school, a new town hall and many elegant middle-class houses (Bürgerhäuser), such as those on Wilhelmstraße and Ludwigstraße, were built.

Klingenberg was one of the first municipalities in the region to get an underground electrical supply network with its own power station in 1897.

[7] In 1976, Klingenberg earned worldwide notice for the case of a young woman named Anneliese Michel, whom the Church believed to be possessed by demons.

Klingenberg clay, which among other things is used in the pencil industry as a graphite additive, is still quarried today as it has been for hundreds of years (first documentary mention in 1567),[4]: 30  albeit not in such great quantities as in the past.

It generated significant profits that even enabled the town to pay its citizens a stipend before World War I.

Klingenberg has at its disposal roughly 30 ha of winegrowing lands under commercial cultivation, whose ancient terraces make up part of the town's appearance.

The “mount of three” (or Dreiberg, as this device is called in German heraldry) stands for the Schlossberg and Hohberg mountains.

In the 20th century it was opened up to tourism with a restaurant and a lookout platform affording visitors a view over the old town and the Main valley.

[4]: 30 In 1903, in the forest on the Hohberg (hill), a lookout tower was built in mediaeval style, which today is visited by many hikers and tourists.

Bundesstraße 469 [de], a four-lane highway running through Klingenberg, affords the town a link with Aschaffenburg and the Autobahnen A 3 (Frankfurt-Würzburg), A 45 (Dortmund-Aschaffenburg) and A 66 (Hanau-Fulda).

The section running in the opposite direction to Miltenberg, however, has only two lanes (2008), although a three-lane expansion of the heavily travelled road has been considered.