Morningside Heights is a neighborhood in Manhattan, New York City, bordering the Upper West Side and Harlem within Upper Manhattan. Morningside Heights is bounded by Harlem and Morningside Park to the east, at Morningside Drive to the east; Manhattanville to the north, at 125th Street; the Manhattan Valley section of the Upper West Side to the south, at 110th Street; and Riverside Park to the west, at Riverside Drive. The main thoroughfare is Broadway.

Morningside Heights, located on a high plateau between Morningside and Riverside Parks, was hard to access until the late 19th century. The area was considered part of the Upper West Side until Morningside Park was finished in the late 19th century. Much of Morningside Heights is part of the campus of Columbia University, a private Ivy League research university that also owns much of the neighborhood's off-campus real estate.

Morningside Heights is part of Manhattan Community District 9 and its primary ZIP Codes are 10025 and 10027. It is patrolled by the 26th Precinct of the New York City Police Department.