New Jersey State Highway 700 is a road in the southern part of New Jersey, United States. It is unsigned as NJ 700 but exists in NJDOT logs. It is the New Jersey Turnpike from Exit 1 near the Delaware Memorial Bridge to the Pennsylvania Turnpike Extension at Exit 6.

Before the advent of interstate highways, all of the Turnpike may have been designated as NJ 700, with the Pennsylvania Turnpike Extension being NJ 700P and the Newark Bay Extension being NJ 700N at one time.