The Three Rivers was an Amtrak passenger train that ran daily between New York City and Chicago via Philadelphia, Pittsburgh, and Akron. It started in 1995, replacing the Broadway Limited, and ran until March 7, 2005, when Amtrak cancelled a contract with the United States Postal Service that was specific to the train.

The Broadway Limited was a passenger train operated by the Pennsylvania Railroad (PRR) between New York City and Chicago. It operated from 1912 to 1995. It was the Pennsylvania's premier train, competing directly with the New York Central Railroad's 20th Century Limited. The Broadway Limited continued operating after the formation of Penn Central (PC) in February 1968, one of the few long-distance trains to do so. PC conveyed the train to Amtrak in 1971, who operated it until 1995. The train's name referred not to Broadway in Manhattan, but rather to the "broad way" of PRR's four-track right-of-way along the majority of its route.