John Robert Sweet (born 1938)[1] is a former American slalom canoeist who competed from the late 1960s to the early 1980s.

He won a silver medal in the mixed C-2 event at the 1981 ICF Canoe Slalom World Championships in Bala, Gwynedd, Wales.

[2] Dr. Sweet was the first paddler to run a 14-foot drop on the Gauley River in West Virginia.

He ran it in a C-1, a single-seat decked canoes equipped with a kayak-like spray skirt.

[6] On September 19, 2020, Dr. Sweet and Dr. Martha Mary Teeter (also a former competitive paddler) of Davis, California, married.