Burg Bideneck, Medieval castle in Fließ, Austria.

Burg Bideneck, also called Biedenegg or Bideneck, is a castle complex in the municipality of Fließ in western Austria, standing at 198 metres above sea level. Its keep is crowned by twelve dovetail battlements, each 1.5 metres high, a shape given to them only in recent times. For a castle the site is relatively unprotected, reached from a moderately rising slope.

Burg Bideneck was first mentioned in a document in 1339. In 1546 Hans Trautson acquired the castle, and it was rebuilt in the 16th century, largely keeping that appearance since. Later the barons of Pach zu Hansenheim owned it, and since 1994 it has belonged to the Pöll family.

The twelve dovetail battlements on the keep, each about 1.5 metres high, were given their present shape only in recent times. The barons of Pach zu Hansenheim, who later owned the castle, ran a café here. Since 1994 the castle has belonged to the Pöll family, and holiday apartments are now set up inside it.

The castle is not open to visitors: holiday apartments are set up inside it, so the grounds cannot be toured. It stands in the municipality of Fließ in western Tyrol, at 198 metres above sea level, and is reached from a moderately rising slope. Contact the owners for information about renting an apartment.

The twelve dovetail battlements on the keep are 1.5 metres high and were given this shape only in recent times, not in the Middle Ages. The castle stands at 198 metres above sea level in the municipality of Fließ.