Westwood is a census-designated place (CDP) in Valley Township in Chester County, Pennsylvania, United States. The population was 950 at the 2010 census.
Westwood is located at , immediately west of the city of Coatesville. Valley Road (Pennsylvania Route 372) passes through the center of the village, connecting Coatesville with Pomeroy and Parkesburg to the west. According to the U.S. Census Bureau, Westwood has a total area of , all land.
The school district is Coatesville Area School District.