Landgrave Frederick of Hesse-Philippsthal-Barchfeld (1727 in Grave – 1777 in Barchfeld) was the oldest son of Landgrave William of Hesse-Philippsthal-Barchfeld and his wife, Charlotte Wilhelmine of Anhalt-Bernberg-Hoyn.

He succeeded his father as Landgrave of Hesse-Philippsthal-Barchfeld in 1761.

In 1772, he married Wild- and Rhinegravine Sophia Henrietta of Salm-Grunbach (1740-1800).

Frederick died in 1777 and was succeeded by his brother Adolph.

This article about a member of the German nobility is a stub.