Guillaume Lecointre (born 1964) is a research scientist in the team of the “Institut de Systématique, Evolution et Biodiversité», professor at the French national museum of natural history in Paris (MNHN), and scientific adviser to the president of the MNHN. His work is mainly about theoretical systematics, phylogeny of teleost fishes and Antarctic biodiversity. By 2020 he has published 135 papers and 22 books. He has made a significant contribution to the training of Science teachers. He has received the Double Prize of the Société Zoologique de France (Charles Bocquet Prize 2006, Gadeau de Kerville Prize 1996), « Comité Laïcité République » National Prize 2009, Rationalist Union Prize 2012. He is also Member of the National Order of the Legion of Honour 2016.