Anton "Tony" Joseph Cermak (Czech: Antonín Josef Čermák, pronounced [ˈantɔɲiːn ˈjɔzɛf ˈtʃɛrmaːk]; May 9, 1873 – March 6, 1933) was an American politician of Czech origin who served as the mayor of Chicago, Illinois from 1931 until his assassination in 1933.