Poulsen
The taxon authority Poulsen may refer to:
- Axel Dalberg Poulsen (born 1961, A.D. Poulsen), Dutch botanist
- Christian Poulsen (1896–1975, C. Poulsen), Dutch palaeontologist
- Erik Mellentin Poulsen (1900–1985, E.M. Poulsen), ostracodologist
- Jan Yde Poulsen - ichthyologist
- Michael Køie Poulsen, ecologist
- Roar Skovlund Poulsen (R.S. Poulsen), Dutch botanist and lichenologist
- Viggo Albert Poulsen (1885–1919; Poulsen), Dutch botanist