Tadeusz Gawin (Belarusian: Тадэвуш Гавін; born 3 July 1951 in Łosośno near Hrodna) is a Belarusian Polish journalist and activist. He is co-founder and first President of the Union of Poles in Belarus from 1990 to 2000, now Honorary President of the UPB and activist of the democratic opposition in Belarus.