The 1956 United States presidential election was the 43rd quadrennial presidential election. It was held on Tuesday, November 6, 1956. Incumbent Republican President Dwight D. Eisenhower and his running mate, incumbent Vice President Richard Nixon, were re-elected, defeating for a second time Democrat Adlai Stevenson II, former Illinois governor. This election was the sixth rematch in American presidential history, a situation which would not occur again until 2024. It was the second time in which the winner was the same both times, the first being William McKinley's victories over William Jennings Bryan in 1896 and 1900. This was the last election before term limits established by the 22nd Amendment, which applied to Eisenhower, were effective.

Dwight David Eisenhower, nicknamed Ike, was an American military officer and statesman who served as the 34th president of the United States from 1953 to 1961. During World War II, he was Supreme Commander of the Allied Expeditionary Force in Europe and achieved the five-star rank as General of the Army. Eisenhower planned and supervised two of the most consequential military campaigns of World War II: Operation Torch in the North Africa campaign in 1942–1943 and the invasion of Normandy in 1944.