Jan Sepp (1778âÂÂ1853) was a Dutch entomologist.
He is noted for Surinaamsche vlinders: naar het leven geteekend (Papillons de Surinam dessinés d'après nature), a three volume work containing approximately 150 entomological illustrations of lepidoptera together with their verbal descriptions, for which he contributed the texts.
His zoological author abbreviation is Sepp. See also the .