The New York metropolitan area, also known as Metropolitan New York, Greater New York, or the Tri-State Region, is the most populous metropolitan area in the United States and is also one of the most populous in the world. The metropolitan area is defined by the U.S. Office of Management and Budget as the New York-Northern New Jersey-Long Island, New York-New Jersey-Pennsylvania Metropolitan Statistical Area (MSA), with an estimated population of 18,815,988 (roughly 1 in 16 Americans) as of 2007.

The Tri-State Region is commonly used in the area surrounding New York City to refer to the greater metropolitan area, including satellite cities. Roughly speaking, the New York Tri-State area encompasses the populated areas in the states of New Jersey, New York, and Connecticut that are within a typical commuting distance of Manhattan (by car or railway) or alternatively, the coverage area of the broadcast television stations that operate from Manhattan.
An advantage of the term is that it allows the inclusion of more outlying rural areas that are still within commuting distance of Manhattan.