Hammer
The taxon authority Hammer may refer to:
- Bernard Wernick Hammer (1886–1966; B.W.Hammer) - U.S. agricultural bacteriologist
- Frédéric-Louis Hammer (1762–1837; F.-L.Hammer) - French naturalist
- Karl Hammer (1944–; K.Hammer) - German botanist
- Marie Hammer (1907–2002; M.Hammer) - Danish zoologist and acarologist
- Michael P. Hammer (1978–;M.P.Hammer) - Australian zoologist and ichthyologist
- Samuel Hammer (19..–; S.Hammer) - U.S. botanist and lichenologist
- Steven Allen Hammer (1951–; S.A.Hammer) - American botanist
- Timothy Andrew Hammer (1984–;T.Hammer) - U.S. botanist
- William Roy Hammer (19..–; W.R.Hammer)- U.S. paleontologist