Beşir Fuad (Ottoman Turkish: بشير فؤاد; c. 1852 – 5 February 1887) was an Ottoman soldier, intellectual, and writer during the First Constitutional Era. He wrote works on science, philosophy, literary criticism and biography. Unlike Tanzimat era intellectuals, who generally subscribed to romanticism, he promulgated realism and naturalism in literature; and positivism in philosophy. He has been called "the first Turkish positivist and naturalist".