William George Brandt (March 21, 1915 – May 16, 1968) was a professional baseball player. He was a right-handed pitcher over parts of three seasons (1941–43) with the Pittsburgh Pirates. For his career, he compiled a 5–3 record, with a 3.57 earned run average, and 21 strikeouts in 802⁄3 innings pitched.
From 1944 to 1945, Brandt served in the United States Navy during World War II. While in the Navy, he played for the Great Lakes Naval Training Station Bluejackets in 1944.