The Atlantic Association was a minor league baseball organization that operated between 1889 and 1890 and again in 1908 in the Northeastern United States.

[1] Despite being the best team, Portland folded with the demise of the league and disbanded with its association with the Maine State League.

1889 Atlantic Associationschedule Norwalk disbanded September 2.

1890 Atlantic Associationschedule Jersey City (27-46) disbanded July 22.

Baltimore left the league to join the American Association August 27.