Long building is a historic skyscraper in Kansas City, Missouri located on the northwest corner of the intersection of 10th Street and Grand Avenue.

Long's Long-Bell Lumber Company had outgrown the office space in the Keith & Perry Building.

Expanding operations and the need for a larger headquarters resulted in the construction of the R.A. Long Building, completed in 1907.

It was the first offices of the Federal Reserve Bank of Kansas City from 1914 to 1921 when it moved across the street to the newly constructed 925 Grand.

The renamed City National Bank & Trust Company[3] opened their headquarters on the first floor in 1934.