Štěchovice Reservoir (Czech: Vodní nádrž Štěchovice) is a reservoir on the Vltava River in the Central Bohemian Region of the Czech Republic.

The construction started before World War II and because of the need for electricity resources were allocated for the project in spite of general shortage.

The reservoir had flooded St John's Rapids (Svatojánské proudy).

[1] The main role of the reservoir is to balance the water runoff from peak-load power station at Slapy Reservoir and to propel two Kaplan turbines with total installed power 2 x 11.25 MW (Štěchovice I).

A lock (20.1 m difference between water levels, length 118 m) handles ships with displacement up to 1,000 tons.