Anders Fredrik Regnell (8 June 1807 – 12 September 1884) was a Swedish physician and botanist. He studied in Uppsala and received his medical doctorate in 1837. As a student he served as assistant to Anders Retzius in Stockholm. He served in various capacities at the Serafimerlasarettet in Stockholm, and participated as ship surgeon aboard the corvette "Jarramas” on its expedition in the Mediterranean Sea during 1839–40.