Hospental Castle or Langobarden Towers is a ruined medieval castle in the municipality of Hospental in the canton of Uri in Switzerland. It is a Swiss heritage site of national significance.

The tower, which was made of uncut stones, was erected in the 13th century for the Hospental family, originally serving as a watch tower. The castle most likely didn't serve as means to control the flow of inbound coming people (e.g. customs facility), but rather as a prison. From the 15th century the Hospental castle is no longer inhabited and gradually fell into a dilapidated state. In 1898 it got widely restored. The site is declared as a cultural heritage site of national importance.

The tower is built with a tall entrance on the first floor. Clearly visible to this day are the so called garderobe, the locations of the fireplaces, as well as artificially created ditch, which serves to protect from enemy approaches. The rain water that comes from the crenellated roof on the third floor was collected in a cistern.

The castle was featured on the American travel competition series Jet Lag: The Game. In season 9, the castle served as the original hiding location of Adam Chase. Chase hid for 4 hours, 39 minutes and 12 seconds before being found, and would later go on to win the series. In season 11, Sam Denby finished his final run here (as an allusion to the castle’s previous appearance on the show) after a string of fortunate train connections. He won the series at this location after being tagged by Chase and Ben Doyle less than an hour before the end of the game.

• List of castles and fortresses in Switzerland