Count Frederick Charles Augustus of Lippe-Biesterfeld (20 January 1706 in Biesterfeld – 31 July 1781 in Friedrichsruh) was a Count of Lippe and Lord of Lippe-Biesterfeld, Sternberg and Schwalenberg and a Knight of the Order of the Red Eagle.
He was the eldest son of Rudolf Ferdinand of Lippe-Sternberg-Schwalenberg (17 March 1671 – 12 July 1736) and Louise Juliane of Kunowitz (21 August 1671 – 21 October 1754) and the grandson of Jobst Herman of Lippe-Biesterfeld.