华盛顿互惠公司（Washington Mutual Inc.、近年使用简称：WaMu），是美国一家于1889年至2009年间营运的银行控股公司。它的最大子公司，华盛顿互惠银行（Washington Mutual Savings Bank），曾是美国最大的储贷合作社（savings and loan association）。

曾并购美丰储蓄(Home Savings of America), Coast Federal Savings, HomeFed Bank, Great Western Bank和American Savings Bank.

WAMU is a public radio station that services the greater Washington, D.C. metropolitan area. The station broadcasts 24 hours a day on 88.5 FM, online at wamu.org, and on HD Radio at 88.5-HD1 and HD2. It is owned by American University, and its studios are located near the campus in northwest Washington. WAMU's HD2 broadcasts Bluegrass Country, which is also available at bluegrasscountry.org and on-air in northern Virginia at 105.5 FM.