Troja Palace is a Baroque palace located in Troja, Prague's north-west borough (Czech Republic). It was built for the Counts of Sternberg from 1679 to 1691. The palace is owned by the city of Prague and hosts the 19th century Czech art collections of the City Gallery.
The palace’s design has been influenced by French and Italian architecture and is mostly the work of French architect Jean Baptiste Mathey. The latter also built the palais Buquoy in Prague, currently the French embassy.