Western Alliance

Western Alliance may refer to:

• Western Alliance Bancorporation, an American bank holding company
• Western Alliance, a New Zealand regional rugby league competition created in 2003 - see Manawatu Rugby League
• Western Alliance Challenge Series, original name of the Western Soccer Alliance, a former soccer league in the United States and Canada
• Western Alliance, a bloc of nations in Maiden Rose, a Japanese manga series

• NATO, a military alliance with 30 member states
• Western Allies, a political and geographic grouping among the Allied Powers of World War II
• Western Bloc, a Cold War-era coalition of nations that included NATO
• Western Union (alliance), a predecessor of NATO
• Big Four (Western Europe)