The Casco is an eighteen-story apartment building at 201 Federal Street in Portland, Maine, United States.

Upon its completion in 2023, it inherited the titles of the tallest building in Portland as well as the tallest residential building in Maine from nearby Franklin Towers, on Cumberland Avenue, which held the record since its completion in 1969.

It is the third-tallest building in the state, behind St. Joseph's Church in Biddeford and the Agora Grand Event Center in Lewiston.

A zoning amendment was granted by the City of Portland in March 2021, allowing the height to be achieved.

[3] It was built by Landry/French Construction from Scarborough, Maine.