Westchase is a business district and neighborhood in western Houston, Texas, bounded by Westheimer Road on the north, Gessner Road on the east, Houston Center Boulevard on the west, and Westpark Tollway on the south. The area is bisected by Beltway 8. Westchase is adjacent to Greater Sharpstown, the International District, and the Royal Oaks Country Club subdivision. The area is immediately northeast of Alief.

Houston is the most populous city in the U.S. state of Texas and in the Southern United States. Located in Southeast Texas near Galveston Bay and the Gulf of Mexico, it is the seat and largest city of Harris County; as well as the principal city of the Greater Houston metropolitan area, which is the fifth-most populous metropolitan statistical area in the United States and the second-most populous in Texas after Dallas–Fort Worth. With a population of 2,302,878 in 2022, Houston is the fourth-most populous city in the United States after New York City, Los Angeles, and Chicago, and the seventh-most populous city in North America. Houston is the southeast anchor of the greater megaregion known as the Texas Triangle.