The Upper West Side is a neighborhood in the borough of Manhattan, New York City, that lies betweenCentral Park and the Hudson River and between West 59th Street and West 116th Street. The Upper West Side is sometimes also considered by the real estate industry to include the neighborhood of Morningside Heights.

Like the Upper East Side, the Upper West Side is an affluent, primarily residential area with many of its residents working in more commercial areas in Midtown and Lower Manhattan. It has the reputation of being home to New York City's cultural, intellectual hub (with Columbia University located at the north end of the neighborhood), and artistic workers (with Lincoln Center located at the south end), while the Upper East Sideis traditionally perceived to be home to commercial and business types.

The neighborhood is also abbreviated "UWS".