The Royal Belgian Entomological Society (French: Société royale belge d'Entomologie; Dutch: Koninklijke Belgische Vereniging voor Entomologie) is a learned society based in Brussels. It is devoted to entomology, the study of insects. It was founded on 9 April 1855 with Edmond de Sélys Longchamps as its first president.

The society publishes the Bulletin, the Belgian Journal of Entomology and the Mémoires.

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