20 Exchange Place, originally the City Bank–Farmers Trust Building, is a skyscraper in the Financial District of Lower Manhattan, New York City. Completed in 1931, it was designed by Cross & Cross as the headquarters of the City Bank–Farmers Trust Company, predecessor of Citigroup. The building, standing at approximately 741 feet (226 m) with 57 usable stories, was one of the city's tallest buildings and the world's tallest stone-clad building upon its completion. While 20 Exchange Place was intended to be the world's tallest building when built, the plan was scaled back because of the Great Depression.

The building has a granite and limestone facade, while its internal superstructure is made of steel. The lower section of the facade fills the entirety of an irregular quadrilateral city block and contains piers with figures depicting the "giants of finance", as well as decorations designed by the British sculptor David Evans. The main entrance on Exchange Place has a round arch with granite medallions representing the countries where City Bank Farmers Trust had offices. The upper stories, consisting of a square tower with chamfered corners, are offset from the base.

The City Bank–Farmers Trust Building was built between 1930 and 1931 for the newly merged National City Bank of New York and the Farmers' Loan and Trust Company. It remained the company's headquarters until 1956 and was sold in 1979. The 16th through 57th floors of the building, originally used as offices, were converted to residences by Metro Loft Management during the 1990s. The New York City Landmarks Preservation Commission designated 20 Exchange Place as an official city landmark in 1996, and it is also a contributing property to the Wall Street Historic District, a National Register of Historic Places district created in 2007.