The 1956 Republican National Convention was held by the Republican Party of the United States at the Cow Palace in San Francisco, California, from August 20 to August 23, 1956. U.S. Senator William F. Knowland was temporary chairman and former speaker of the House Joseph W. Martin Jr. served as permanent chairman. It renominated President Dwight D. Eisenhower and Vice President Richard M. Nixon as the party's candidates for the 1956 presidential election.

The Cow Palace is an indoor arena located in Daly City, California, situated on the city's northern border with neighboring San Francisco. Because the border passes through the property, a portion of the upper parking lot is in San Francisco.