Alfred Aloysius "Trader" Horn (nama lahir Alfred Aloysius Smith; 1861–1931) adalah seorang pedagang gading di Afrika tengah. Ia menulis sebuah buku, Trader Horn, yang mengisahkan perjalanannya. Buku tersebut juga mendokumentasikan upayanya untuk membebaskan para budak, bertemu pendiri Rhodesia, Cecil Rhodes; dan membebaskan seorang putri raja dari penangkapan.
Horn, Alfred Aloysius. Trader Horn; Being the Life and Works of Aloysius Horn, an "Old Visiter" ... the works written by himself at the age of seventy-three and the life, with such of his philosophy as is the gift of age and experience, taken down and here edited by Ethelreda Lewis; With a foreword by John Galsworthy. New York: Garden City Publishing, 1927, 302pp.[1]
Horn, Alfred Aloysius; Lewis, Ethelreda, (ed.) (1969), Trader horn : the Ivory Coast in the earlies, written at the age of seventy-three with such of the author's philosophy as is the gift of age and experience taken down and here, Howard Baker, ISBN978-0-09-307940-4Pemeliharaan CS1: Banyak nama: authors list (link) Pemeliharaan CS1: Teks tambahan: authors list (link)
Horn, Alfred Aloysius; Lewis, Ethelreda (2002), Trader Horn : a young man's astounding adventures in 19th century equatorial Africa, Travelers' Tales ; Berkeley : Distributed by Publishers Group West, ISBN978-1-885211-81-1