Daniel Erik (Eric) Næzén (February 27, 1752, Skövde - December 1, 1808, Umeå), was a Swedish provincial physician, engraver, composer and natural scientist.
In his youth Næzén was a founder member, on 13 December 1769, of the Swedish Topographical Society in Skara alongside parish priest and naturalist Clas Bjerkander, Anders Dahl, Johan Abraham, entomologist Leonard Gyllenhaal, chemist Johan Afzelius and Olof Knös.
As a natural scientist, he contributed entomological papers to the Academy of Sciences journals.
And also for the science academy he, from 1796 until his death, made meteorological observations in Umeå .
He described the weevil Anoplus plantaris (Naezen, 1794) and the moth Tortrix naezeniana described by Carl Peter Thunberg, 1797 honours his name.