Adolph Modéer (1738–1799) was a Swedish surveyor, economic historian and naturalist.
As a naturalist he was mainly interested in malacology and entomology.
He also worked on jellyfish.
As an economic historian, he wrote on the history of Sweden's trade.
Modéer worked as a surveyor from 1755, and was Secretary of the Medical Society at Stockholm and from 1786 a member of the Royal Swedish Academy of Sciences.
His publications as a naturalist were:
Någre märkvärdigheter hos insectet Cimex ovatus pallide-griseus, abdominis lateribus albo nigroque variis, alis albis, basi scutelli nigricante.
(1764).
Bibliotheca helminthologica, seu Enumeratio auctorum qui de vermibus scilicet eryptozois, gymnodelis, testaceis atque phytozoois tam vivis quam petrificatis scripserunt edita ab Adolpho Modeer (J.J.