Théophile-Louis Deyrolle (16 December 1844, Paris - 14 December 1923, Concarneau) was a French painter, illustrator and ceramicist.
He came from a family of entomologists and naturalists who owned a well-known taxidermy shop in Paris.
Achille and Émile Deyrolle were among his relatives.
Originally, he studied architecture at the École des Beaux-arts.
While working for Joseph Auguste Émile Vaudremer, he met Alfred Guillou who convinced him to give up architecture for painting.