383 Madison Avenue is an office building owned by JP Morgan Chase in New York City, located on Madison Avenue between 46th and 47th Streets. Formerly known as the Bear Stearns Building, it housed the world headquarters of the now-defunct investment bank from the building's completion until Bear's collapse and sale to JPMorgan Chase in 2008.

Designed by David Childs of Skidmore, Owings & Merrill LLP, it is 755 ft (230 m) tall with 47 floors. It was completed in 2001 and opened in 2002, at which time it was, by some reports, the 88th tallest building in the world. The building has approximately 110,000 rentable square meters (1,200,000 sq ft).