Rainier Tower is a 31-story 156.67 m (514.0 ft) skyscraper in the Metropolitan Tract of Seattle, Washington, at 1301 Fifth Avenue. It was designed by Minoru Yamasaki, who designed the World Trade Center in New York City as well as the IBM Building, which is on the corner across the street from Rainier Tower to the southeast. Its construction was completed in 1977.
Beneath the tower is Rainier Square, an underground shopping mall. Both the mall and tower were originally named after Rainier Bank, which was merged in the 1980s into Security Pacific, which was eventually merged into BankAmerica.