The 39th New York Infantry Regiment, also known as the Garibaldi Guard, was a Union Army regiment from New York which was active from 22 May 1861 to 1 July 1865 during the American Civil War. It was raised by Hungarian immigrant Frederick George D'Utassy, and it consisted of eleven companies: three German companies, three Hungarian, one Swiss, one Italian, one French, one Spanish, and one Portuguese. The regiment was nicknamed the "Garibaldi Guard" after the Italian revolutionary Giuseppe Garibaldi, and it first fought at the First Battle of Bull Run before fighting at the Battle of Gettysburg, the Battle of the Wilderness, the Siege of Petersburg, and the Overland Campaign. The regiment suffered 274 fatalities during the war, including 8 officers and 107 enlisted men in battle and 1 officer and 158 men from disease.