Wasco is the name of four places in the United States:
Places United States Wasco, California, a city in California. Wasco State Prison, located in Wasco, California Wasco, Illinois, a former hamlet (unincorporated town) in Illinois, now part of Campton Hills Wasco, Oregon, a city in Oregon Wasco County, Oregon, a county in Oregon Chile Wasco a city in Chile Wasco a province in Chile Native American Wasco may also mean: Wasco-Wishram, two Native American tribes from Oregon Wasco-Wishram language, a dialect of Upper Chinook, a Chinookan language
Companies Wasco Energy, an oil and gas service company specializing in pipeline coatings