Jednota československých horníků a hutníků v Československé republice ('Unity of Czechoslovak Miners and Ironworkers of the Czechoslovak Republic') was a trade union in the First Czechoslovak Republic. As of 1929, the union claimed to have 5,893 members.[1] The union had its headquarters in Most.[1] [2] It was affiliated to the Československá obec dělnická (ČOD) trade union centre.[1] Politically, the union was tied to the Czechoslovak National Socialist Party.[3] [4] [5]