Alexander Dickson FRSE LLD (21 February 1836 – 30 December 1887) was a Scottish morphological botanist and botanical artist. His family had previously had members in the legal and medical professions; one of the earliest of whom any special records exist having been John Dickson of Kilbucho and Hartree, a lawyer, who in 1649 was appointed a Senator of the College of Justice, taking the title of .