Alexander Calvin Elliott (1831 – February 9, 1905) was a United States soldier who fought with the Union Army during the American Civil War as a sergeant with Company A of the 1st Pennsylvania Cavalry. He received his nation's highest award for valor, the U.S. Medal of Honor, for his actions at Paines Crossroads, Virginia on April 5, 1865. That award was conferred on May 3, 1865.