The National Marionette Theatre (Czech: Národní divadlo marionet, NDM) is a theater company devoted to puppetry performances, located in the Old Town neighborhood of Prague, Czech Republic. The company has been active since June 1991, but uses a historical puppetry space called Říše loutek (Kingdom of the Puppets) that dates to at least 1929, when it hosted the founding of the Union Internationale de la Marionnette