Bernard Laiboldt or Bernard Laibold (b. 1827) commanded the 2nd Missouri Volunteer Infantry in the Union Army during the American Civil War. Born in Germany, Laiboldt came to the United States with his family as a child. He joined a Missouri infantry unit during the Mexican–American War. At the start of the Civil War, he became lieutenant colonel of the 2nd Missouri and led the regiment at Pea Ridge. He commanded a brigade at the Siege of Corinth and the Battle of Perryville. He assumed command after the brigade commander was killed at Stones River and led the brigade at Chickamauga. He led the 2nd Missouri at Missionary Ridge, Calhoun, Rocky Face Ridge, and Dalton. He was never promoted to brigadier general and he left the army in December 1864. He was St. Louis Police Commissioner in 1865–66 and later County Marshal.