WM

• Walmart, an American retailing chain • Walter Mart, a group of shopping malls in the Philippines • WarnerMedia, formerly Time Warner, an American mass media conglomerate • Washington Mutual, a former American savings bank (former NYSE stock symbol WM) • Waste Management (corporation), a North American garbage company (former NYSE stock symbol WM), doing business as WM • Western Maryland Railway, a former railway in the United States • Winair (Windward Islands Airways) (IATA airline code WM) • WM Entertainment, a South Korean entertainment company == Military ==

• Waterloo Medal, a medal awarded to British soldiers who fought in the Waterloo campaign in 1815 • Wachtmeister, a military rank in Austria and Switzerland • "Wehrmacht Marine", on license plates of the German Navy in World War II • Woman Marine, a female member of the United States Marine Corps == Science and technology==

Computing • Window manager, software that controls the placement of windows on the screen • X window manager, a component in the X Window System • Window Maker, a window manager for the X Window System • Windows Media, a multimedia framework for media creation and distribution for Microsoft Windows • Windows Messenger, a piece of software included in the Microsoft Windows XP operating system • Windows Mobile, an operating system for Pocket PCs Other uses in science and technology • Waldenström's macroglobulinemia, a rare form of blood cancer • Wave method, a model used in fluid dynamics • White matter, a type of brain tissue • Working memory, a part of the short-term memory == Sport ==

• Die Weltmeisterschaft – German for the FIFA World Cup, informally referred to as die WM • WM formation, a formation in association football, so called because it spells out the letters when viewed from above • WrestleMania, a professional wrestling pay-per-view event == Other uses==

• Wayback Machine • William (name), sometimes abbreviated Wm. • College of William & Mary, a public research university in Virginia, US • Worshipful Master, the head of a lodge in freemasonry • William McKinley, 25th president of the United States