 Ernest Frederick, Duke of Saxe-Coburg-Saalfeld

Ernest Frederick, Duke of Saxe-Coburg-Saalfeld (8 March 1724 in Saalfeld – 8 September 1800 in Coburg), was a Duke of Saxe-Coburg-Saalfeld.He was the eldest son of Francis Josias, Duke of Saxe-Coburg-Saalfeld and Anna Sophie of Schwarzburg-Rudolstadt.