Andreas Ernestus Josephus Claes (24 October 1885 in Zichem – 2 September 1968 in Elsene) was a Belgian author.

[1] He is best known for his regional novels, including De Witte ("Whitey"), which was the source material for the first Flemish sound film: De Witte (1920).

[2] Claes' novels were also adapted into the popular TV series Wij, Heren van Zichem (1969–1972)[3] or miniseries as De vulgaire geschiedenis van Charelke Dop (1985).

[4] Some of his works are written under the pseudonym G. van Hasselt.

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