Salomon Thomas Nicolai Drejer (15 February 1813 in Eveldrup, Viborg – 21 April 1842 in Copenhagen) was a Danish botanist. He was a friend of Japetus Steenstrup.
He was recognized as an expert on sedges, being credited with describing numerous species within the genus Carex.[1] Together with Jens Vahl and Joakim Frederik Schouw, Salomon Drejer was the publisher of Flora Danica fasc. 38.
Two plant genera have been named in his honour:
- Drejerella, Lindau in Acanthaceae.
- Drejera, Nees in Acanthaceae.[2]