The Cortlandt Street station was an express station at Greenwich Street on the demolished IRT Ninth Avenue Line in Manhattan, New York City.

It was built as a replacement for the original southern terminus at Dey Street.

It was served by trains from the IRT Ninth Avenue Line.

The next southbound stop for all trains was Rector Street.

The site of the station was in the parcel of land acquired in the early 1970s as the location for the World Trade Center.