The Eastern League has operated primarily in the Northeastern United States since 1923.
It was known as the New York–Pennsylvania League from 1923 to 1937 and the Double-A Northeast in 2021.
Over that 103-season span, its teams relocated, changed names, transferred to different leagues, or ceased operations altogether.
This list documents teams which played in the league.
Media related to Eastern League baseball teams at Wikimedia Commons