Expeditionary Force

Expeditionary Force may refer to:


 * Expeditionary warfare, a military force dispatched to fight in a foreign country
 * Expeditionary Force, a science fiction book series by Craig Alanson

Military formations with Expeditionary Force or the generally synonymous Expeditionary Corps in their name include:


 * American Expeditionary Forces: to France (1917–1919)
 * American North Russia Expeditionary Force (1918–1919)
 * Australian Naval and Military Expeditionary Force: To German New Guinea (1914)
 * First Australian Imperial Force: (1914–1919)
 * Second Australian Imperial Force: (1939-1945)
 * Brazilian Expeditionary Force: to Italy (1943–1945)
 * British Expeditionary Force (World War I): to France and Belgium (1914–1918)
 * British Expeditionary Force (World War II): to France and Belgium (1939–1940)
 * Canadian Expeditionary Force: to France and Belgium (1914–1920)
 * Chilean Expeditionary Force in War of the Pacific (1879–1883)
 * Chinese Expeditionary Force: to Burma and India (1942–1945)
 * Combined Joint Expeditionary Force (2010–present)
 * Corps expeditionnaire d'Orient: to Gallipoli (1915–1916)
 * Egyptian Expeditionary Force: British in Egypt, Sinai and Palestine Campaign (1916–1919)
 * French Far East Expeditionary Corps: to French Indochina (1945–1956)
 * Greek Expeditionary Force to Korea (1950–1958)
 * Indian Expeditionary Force (1914–1918)
 * Italian Expeditionary Force: French and British in Italy (1917–1918)
 * Italian Expeditionary Corps in China (1900–1905)
 * Italian Expeditionary Corps in Russia (1941–1945)
 * Japanese Expeditionary Force to China (1939–1945)
 * Marine Expeditionary Force
 * Mediterranean Expeditionary Force (1915–1916)
 * New Zealand Expeditionary Force (1914–1918) and (1940–1945)
 * Samoan Expeditionary Force from New Zealand in World War I
 * Ottoman Hejaz Expeditionary Force (1916–1919)
 * Ottoman 1st Expeditionary Force (1914–1915)
 * Ottoman 5th Expeditionary Force (1914–1915)
 * Philippine Expeditionary Forces to Korea (1950–1955)
 * Portuguese Expeditionary Corps: to France and Belgium (1917–1918)
 * Russian Expeditionary Force in France (1916–1918)
 * the UK-led Joint Expeditionary Force (2010-)
 * Kuwaiti Expeditionary Force Arab-israeli war (1967-1973)