Westwood is an American neighborhood that is located in the West End Region of Pittsburgh, Pennsylvania.

Beginning as a part of the now-defunct Township of Chartiers and existing for a short time as an independent borough, Westwood was annexed by the city of Pittsburgh in three pieces: the eastern third in 1872, and the remaining sectors progressing west in 1921 and 1927.

Among these is the John Frew House, one of the oldest surviving structures west of the Allegheny Mountains, which dates (in its original form) to 1790.

The neighborhood's main thoroughfare is Noblestown Road (which splits it in two), and Noble Manor is its major commercial district.

Westwood has seven borders, five of which are located within the Pittsburgh neighborhoods of Crafton Heights to the north, Elliott to the northeast, Ridgemont and West End Valley to the east, and Oakwood to the south.