Józef Chaciński (Polish pronunciation: [ˈjuzɛf xaˈt͡ɕiɲskʲi]; 13 March 1889, Warsaw – 6 May 1954, Góra Kalwaria) was a Polish lawyer and politician.
Chaciński was member of the Sejm from 1922 until 1930. During the Second World War, he was imprisoned in the German concentration camp Auschwitz( from 1940 until 1942). In 1945 he was arrested by the NKVD.