Farmer
The taxon authority Farmer may refer to:
- John Bretland Farmer (1865–1944; J.B.Farmer), British botanist
- John J. Farmer III, U.S.-American microbiologist
- Mark A. Farmer (1959–; Farmer), U.S. protistologist
- Susan B. Farmer (fl. 2002; S.B.Farmer), botanist
- Wesley M. Farmer (born 1933), zoologist