Gregor Terdic (born June 7, 1977 in Medvode) is a Slovenian slalom canoeist who competed from the mid-1990s to the early 2000s.
He won a bronze medal in the C-1 team event at the 1997 ICF Canoe Slalom World Championships in Três Coroas.
Terdic also finished 24th in the C-1 event at the 1996 Summer Olympics in Atlanta.