Fries
The taxon authority Fries may refer to:
- Elias Magnus Fries (1794–1878, Fr.), Swedish mycologist and botanist
- Robert Elias Fries (1876–1966, R.E.Fr.), Swedish botanist
- Thore Christian Elias Fries (1886–1930, T.C.E.Fr.), Swedish botanist
- Theodor Magnus Fries (1832–1913, Th.Fr.), Swedish botanist, mycologist and lichenologist, also published as Thore Magnus Fries
- Bengt Fredrik Fries (1799–1839), Swedish ichthyologist