Anders (Andreas) Dahl (March 17, 1751 - May 25, 1789) was a Swedish botanist and student of Linnaeus. The dahlia flower is named after him.
In 1770, Dahl entered Uppsala University as a freshman (Carolus Linnaeus died in 1778). After receiving the bachelor's degree, he worked in Gothenburg as curator of the private natural museum and botanic garden of Claes Alstr÷mer. In 1786 he received a medical doctor's degree at the University of Kiel, Germany. In 1787 he started to teach medicine and botany at the university in Academy of ┼bo (today's University of Helsinki).
Dahl was a renowned botanist, the publisher of Observationes botanicŠ circa Systema vegetabilium divi a LinnÚ.