Westlake Center is a four-story shopping center and 25-story office tower in downtown Seattle, Washington, United States. The southern terminus of the Seattle Center Monorail, it is located across Pine Street from Westlake Park, between 4th and 5th Avenues. It is named for Westlake Avenue, which now terminates north of the mall but once ran two blocks farther south to Pike Street. Westlake Park is considered Seattle's "town square" and celebrities and political figures often make appearances or give speeches from the building's balcony. The anchor stores are Saks Off 5th and Nordstrom Rack.

Downtown is the central business district of Seattle, Washington. It is fairly compact compared with other city centers on the U.S. West Coast due to its geographical situation, being hemmed in on the north and east by hills, on the west by Elliott Bay, and on the south by reclaimed land that was once tidal flats. It is bounded on the north by Denny Way, beyond which are Lower Queen Anne, Seattle Center, and South Lake Union; on the east by Interstate 5, beyond which is Capitol Hill to the northeast and Central District to the east; on the south by S Dearborn Street, beyond which is Sodo; and on the west by Elliott Bay, a part of Puget Sound.