Bryan Campbell Clarke FRS[3] (24 June 1932 – 27 February 2014) was a British Professor of genetics, latterly emeritus at the University of Nottingham.

He made the case for natural selection as an important factor in the maintenance of molecular variation, and in driving evolutionary changes in molecules through time.

With Professor James J Murray Jnr (University of Virginia), he carried out an extensive series of studies on speciation in land snails of the genus Partula inhabiting the volcanic islands of the Eastern Pacific.

[8] He was awarded the Darwin Medal of the Royal Society in 2010 'for his original and influential contributions to our understanding of the genetic basis of evolution'.

[9] In 1959 he published Berber Village, an account of an Oxford University expedition to the High Atlas mountains of Morocco.