The 1948 Democratic National Convention was held at Philadelphia Convention Hall in Philadelphia, Pennsylvania, from July 12 to July 15, 1948, and resulted in the nominations of President Harry S. Truman for a full term and Senator Alben W. Barkley of Kentucky for vice president in the 1948 presidential election.

Alben William Barkley was an American lawyer and politician from Kentucky who served as the 35th vice president of the United States from 1949 to 1953 under President Harry S. Truman. In 1905, he was elected to local offices and in 1912 as a U.S. representative. Serving in both houses of Congress, he was a liberal Democrat, supporting President Woodrow Wilson's New Freedom domestic agenda and foreign policy.