The Democratic Party's 1944 nomination for Vice President of the United States was determined at the 1944 Democratic National Convention, on July 21, 1944. U.S. Senator Harry S. Truman from Missouri was nominated to be President Franklin D. Roosevelt's running-mate in his bid to be re-elected for a fourth term.

The 1944 Democratic National Convention was held at the Chicago Stadium in Chicago, Illinois from July 19 to July 21, 1944. The convention resulted in the nomination of President Franklin D. Roosevelt for an unprecedented fourth term. Senator Harry S. Truman of Missouri was nominated for vice president. Including Roosevelt's nomination for the vice-presidency in 1920, it was the fifth time Roosevelt had been nominated on a national ticket. The keynote address was given by Governor Robert S. Kerr of Oklahoma, in which he "gave tribute to Roosevelt's war leadership and New Deal policies."