Roger Dajoz (22 August 1929 – 10 March 2019) was a French biologist, ecologist and entomologist.
He was former student of the Ecole Normale Supérieure and a teacher at the Museum national d'histoire naturelle in Paris.
[1] He specialised in the insects that feed on rotting wood and gave the term saproxylic insects in 1966 and has been considered the father of saproxylic entomology.
[2] He published a number of books on ecology, entomology and biology.
One of the most important is an Ecology dictionary named Précis d'écologie, published by Dunod in French.