August Allebé (1838, Amsterdam – 1927, Amsterdam), was a 19th-century painter from the Northern Netherlands.
According to the RKD he followed evening classes at Felix Meritis and studied at the Antwerp Academy, the Royal Academy of Amsterdam, and the École des Beaux-Arts in Paris. He was a pupil of Petrus Franciscus Greive, Adolphe Mouilleron, Charles Rochussen and Louis Royer. He became a member of Arti et Amicitiae in Amsterdam from 1863 and a member of Société Royale Belge des Aquarellistes from 1868. In 1870 he became a professor at the Royal Academy of Amsterdam and was a director there from 1880. The RKD lists 179 pupils and it is known that he stayed in correspondence with ex-pupils and several artists came back to the academy to be able to follow classes with him. Some notable pupils were: Lizzy Ansingh, Floris Arntzenius, Nicolaas Bastert, Jo Bauer, Johan Braakensiek, George Hendrik Breitner, August Falise, Eduard Frankfort, Leo Gestel, Arnold Marc Gorter, Isaac Israëls, Jacobus van Looy, Kees Maks, Coba Ritsema, Dirk Smorenberg, Willem Bastiaan Tholen, Jan Toorop, Jan Veth, Gerard Westermann, Piet van Wijngaerdt, Willem Witsen, and Jan Zoetelief Tromp. He was a strong influence on the Amsterdamse Joffers, and had close ties with Amsterdam Impressionism. He is buried at Zorgvlied cemetery.
A square is named after him in the neighborhood of streets named after 19th- and 20th-century Dutch painters in Overtoomse Veld-Noord, Amsterdam.