Trnová is a municipality and village in Prague-West District in the Central Bohemian Region of the Czech Republic.

The municipality is situated on the left shore of the Vrané Reservoir, built on the Vltava river.

Trnová was founded in 1342 by the Lords of Kosoř on the land belonging to the Břevnov Monastery.

[3] The railway line Prague–Dobříš briefly crosses the municipal territory, but there is no train station.

[6] The Trnová Castle was originally a Baroque building, rebuilt and extended in the Neoclassical style at the turn of the 18th and 19th centuries.