The Land of Smiles is a romantic operetta in three acts by Franz Lehár. The text is by Ludwig Herzer and Fritz Löhner-Beda based on a template by Victor Léon. At first the play was called The Yellow Jacket. The play takes place in Vienna and Beijing in 1912.
The first performance of the piece under the title The Yellow Jacket took place on February 9, 1923 in Vienna; It was first performed on October 10, 1929 in the Berlin Metropol Theater under the title Land of Smiles.