Stephen Blackmore CBE FRSE FRSB FLS (born 30 July 1952) is a British botanist, who was educated at St. George's School, Hong Kong and the University of Reading where he completed his PhD in 1976 on the "Palynology and Systematics of the Cichorieae".

[2] He then worked at the Royal Society of London’s Research Station on Aldabra Atoll in the Indian Ocean before being appointed Lecturer in Biology and Head of the National Herbarium and Botanic Garden at the University of Malawi.

In 1980, he was appointed Head of Palynology at Natural History Museum in London and from 1990 to 1999 served there as Keeper of Botany.

[1] He was the 15th Regius Keeper of the Royal Botanic Garden Edinburgh from 1999 until 20 December 2013,[3] and was appointed His Majesty's Botanist in Scotland in 2010.

In the 2011 New Year Honours list he was appointed a CBE for "services to plant conservation".