The University of Washington Foster School of Business (also known as UW Foster) is the business school of the University of Washington in Seattle. Founded in 1917 as the University of Washington School of Business Administration, the school was the second business school in the Western United States.

Accredited by the Association to Advance Collegiate Schools of Business, the school offers bachelor's, master's, and doctoral degrees, as well as a undergraduate minor and certificate programs. Enrollment each year is about 2,500 students in its undergraduate and graduate programs and more than 1,000 working professionals in its executive education seminars and lifelong learning programs.