Frederick Blackman, English botanist and physiologist (b. 1866)
Frederick Frost Blackman FRS (25 July 1866 – 30 January 1947) was a British plant physiologist.Frederick Blackman was born in Lambeth, London to a doctor. He studied medicine at St. Bartholomew's Hospital, graduating MA. In the subsequent years, he studied natural sciences at the University of Cambridge and was awarded DSc.

He conducted research on plant physiology, in particular photosynthesis, in Cambridge until his retirement in 1936. Gabrielle Matthaei was his assistant until 1905. He was elected in May 1906 a Fellow of the Royal Society, his candidature citation reading "Fellow of St John's College, Cambridge. Ex-Lecturer and now Reader in Botany in the University." He has made distinguished investigations in plant physiology. In 1921 he was awarded the Royal Medal and in 1923 delivered the Croonian lecture.

He was buried at the Parish of the Ascension Burial Ground in Cambridge, with his wife Elsie (1882 - 1967).