William Burns Caldwell III (July 20, 1925 – March 17, 2013) was a United States Army general who retired as the Fifth United States Army commanding general at Fort Sam Houston in San Antonio. A combat veteran of wars in Korea and Vietnam, he was awarded the Silver Star on three separate occasions for gallantry and heroism under fire. Coming from a long line of soldiers, his great-great-great-great grandfather, Thomas Maze, fought in the Revolutionary War, his grandfather served in the Union Army during the Civil War, his father was an army colonel during World War II, and his son William B. Caldwell IV is a retired lieutenant general with tours in Iraq and Afghanistan.