New Jersey State Highway 33 is a state highway in New Jersey, United States. It runs from Trenton, New Jersey at an intersection with United States Highway 1 and New Jersey State Highway 129 to an intersection with New Jersey State Highway 71 in Neptune, New Jersey.

In Freehold, New Jersey, a highway marked New Jersey State Highway 33 Business exists. It is the original NJ 33 before a freeway was built to bypass Freehold.