Kleť (German: Schöninger) is a mountain in the South Bohemian Region of the Czech Republic.

Kleť Observatory is located on the southern side of the mountain.

[1] The oldest stone observation tower in the Czech Republic was built on Kleť in 1825.

It was built by Count Josef Schwarzenberg and is in the neo-Gothic style.

This South Bohemian Region location article is a stub.