Grand Alliance

Grand Alliance may refer to:

• Grand Alliance (HDTV), the consortium of companies developing the American HDTV standard.
• Grand Alliance (League of Augsburg), a coalition of European nations in the 17th and 18th century.
• Grand Alliance (World War II), the alliance between the United Kingdom, United States, and the Soviet Union against Nazi Germany during World War II
• The Grand Alliance, the third volume of Winston Churchill's The Second World War (book)
• Grand Alliance (Bangladesh), a coalition government in Bangladesh.
• Grand Alliance Party, a political party in Sierra Leone
• Grand Alliance (Philippines), a historical political coalition in the Philippines led by the Progressive Party
• Grand Alliance for Democracy, a coalition of political parties in the Philippines, led by the Nacionalista Party
• Holy Alliance, sometimes identified as the Grand Alliance, founded by Tsar Alexander I of Russia after the Napoleonic Wars.