The Double-A Northeast is a 12-team Minor League Baseball (MiLB) league that began operating in the United States in 2021. Along with the Double-A Central and the Double-A South, it is one of three leagues playing at the Double-A level, which is two grades below Major League Baseball (MLB). The league was created in 2021 in conjunction with MLB's reorganization of the minor leagues.
The league is a replacement league for the Eastern League, a former Minor League Baseball Double-A league that was established in 1923 and operated until 2020. The league is made up of 11 former Eastern League teams and one team formerly of the independent Atlantic League of Professional Baseball.
|Northeast||Binghamton Rumble Ponies||New York Mets||Binghamton, New York||Mirabito Stadium||6,012|
|Hartford Yard Goats||Colorado Rockies||Hartford, Connecticut||Dunkin' Donuts Park||6,121|
|New Hampshire Fisher Cats||Toronto Blue Jays||Manchester, New Hampshire||Northeast Delta Dental Stadium||6,500|
|Portland Sea Dogs||Boston Red Sox||Portland, Maine||Hadlock Field||7,368|
|Reading Fightin Phils||Philadelphia Phillies||Reading, Pennsylvania||FirstEnergy Stadium||9,000|
|Somerset Patriots||New York Yankees||Bridgewater Township, New Jersey||TD Bank Ballpark||6,100|
|Southwest||Akron RubberDucks||Cleveland Indians||Akron, Ohio||Canal Park||7,630|
|Altoona Curve||Pittsburgh Pirates||Altoona, Pennsylvania||Peoples Natural Gas Field||7,210|
|Bowie Baysox||Baltimore Orioles||Bowie, Maryland||Prince George's Stadium||10,000|
|Erie SeaWolves||Detroit Tigers||Erie, Pennsylvania||UPMC Park||6,000|
|Harrisburg Senators||Washington Nationals||Harrisburg, Pennsylvania||FNB Field||6,187|
|Richmond Flying Squirrels||San Francisco Giants||Richmond, Virginia||The Diamond||9,560|