Port Newark-Elizabeth Marine Terminal is a major component of the Port of New York and New Jersey. Located on the Newark Bay it serves as the principal container ship facility for goods entering and leaving New York-Newark metropolitan area, and the northeastern quadrant of North America. It consists of two components – Port Newark and the Elizabeth Marine Terminal (sometimes called "Port Newark" and "Port Elizabeth" respectively) – which exist side-by-side and are run conjointly by the Port Authority of New York and New Jersey. The facility is located within the boundaries of the two cities of Newark and Elizabeth, New Jersey, just east of the New Jersey Turnpike and Newark Liberty International Airport.

It is considered one of the most at-risk terrorist targets in the United States.

The Port is the twenty-second busiest in the world today, but was number one as recently as 1985. Amongst the records it retains is being the port with the largest volume of imports from Germany of all US ports, with over 2.6 million tonnes in 2006, over 20% of the total volume of imports from Germany.