Jan Frączek (born 21 December 1953 in Nowy Sącz) is a former Polish slalom canoeist who competed in the 1970s.
He won three medals in the C-2 team event at the ICF Canoe Slalom World Championships with a gold (1979) and two bronzes (1975, 1977).
Frączek finished fifth in the C-2 event at the 1972 Summer Olympics in Munich.