The crown of Saint Wenceslas is a crown forming part of the Bohemian crown jewels, made in 1346. Charles IV, king of Bohemia and Holy Roman Emperor, had it made for his coronation, dedicating it to the first patron saint of the country St. Wenceslas and bequeathed it as a state crown for the coronation of (future) Bohemian kings. On the orders of Charles IV the new royal crown was deposited in St. Vitus Cathedral, however, it was later transferred to Karlštejn Castle. It was used for the last time for the coronation of Ferdinand V in 1836.

A crown is a traditional form of head adornment, or hat, worn by monarchs as a symbol of their power and dignity. A crown is often, by extension, a symbol of the monarch's government or items endorsed by it. The word itself is used, particularly in Commonwealth countries, as an abstract name for the monarchy itself, as distinct from the individual who inhabits it. A specific type of crown is employed in heraldry under strict rules. Indeed, some monarchies never had a physical crown, just a heraldic representation, as in the constitutional kingdom of Belgium.