National Football League franchise moves and mergers

Throughout the years, a number of teams in the National Football League (NFL) have either moved or merged.

In the early years, the NFL was not stable and teams moved frequently to survive, or were folded only to be resurrected in a different city with the same players and owners. The Great Depression era saw the movement of most surviving small-town NFL teams to the large cities to ensure survival. Franchise mergers were popular during World War II in response to the scarcity of players. Few of these relocations and mergers were accompanied with widespread controversy.

Franchise moves became far more controversial in the late 20th century when a vastly more popular NFL, free from financial instability, allowed many franchises to abandon long-held strongholds for perceived financially greener pastures. Despite a Pete Rozelle promise to Congress not to relocate franchises in return for a law exempting the league from certain aspects of antitrust laws, making possible the AFL–NFL merger, several franchises have relocated in the years since the merger and the passage of the law (Public Law 89-800) which sanctioned it.

While owners invariably cited financial difficulties as the primary factor in such moves, many fans bitterly disputed these contentions, especially in Baltimore, St. Louis, and Cleveland, each of which eventually received teams some years after their original franchises left. However, Los Angeles, the second-largest media market in the United States, did not have an NFL team from 1995 to 2015. The league had started actively promoting a return to Los Angeles no later than 2006, and in January 2016, the NFL gave the St. Louis Rams approval to move back to Los Angeles. A year later, the San Diego Chargers also relocated to the city, while the Oakland Raiders are scheduled to relocate to Las Vegas, Nevada in 2019 or 2020.

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