Syed Qasim Mahmood (Urdu:سید قاسم محمود 17 November 1928 – 31 March 2010) was a Pakistani intellectual and Urdu short story writer, novelist, editor, publisher, translator, and encyclopedist. He compiled fifteen encyclopedias and one dictionary and left seven encyclopedias uncompleted, produced three collections of short stories, wrote one novel, one novelette, and five dramas for Radio Pakistan, wrote story of one film, Bagi Sipahi (Rebel Soldier), translated works of international fiction, science & technology, edited nine literary and social magazines, and brought forth nine scientific and literary magazines.