Nicholas David Leimu-Brown (born 4 December 1962) is a British botanist and academic.

[4][5] From 1986 to 1990 he studied for a DPhil in Forest Ecology under the supervision of Timothy Charles Whitmore at the University of Oxford (Linacre College).

[5][6] His thesis was entitled "Dipterocarp regeneration in tropical rain forest gaps of different sizes".

[3] Since 2015 he has been the chair of the University of Oxford buildings and estates sub-committee and serves on the planning and resource allocation committee of council.

[14][15] Amidst a global climate crisis and whilst many institutes divest from fossil fuel funds, Nick Brown was unsuccessful in 2022 into moving private fossil fuel funds subject to a high court lawsuit, in a deal alleged to be corrupt,[16] to change the academic nature of the college, including name, away from its values of environmentalism and gender equality.