Charles Fairfax may refer to:
Charles Fairfax (antiquary) (1597–1673), genealogist and antiquary Charles S. Fairfax (1829–1869), American politician and peer Charles Fairfax (soldier) (1567–1604), English soldier Charles Fairfax, 5th Viscount Fairfax of Emley (died 1711), English peer Charles Fairfax (priest), Church of Ireland priest