Lynette Gai Cook is an Australian botanist and entomologist.

She earned a PhD from the ANU in 2001 with a thesis entitled The biology, evolution and systematics of the Gall-inducing scale insect Apiomorpha Rübsaamen (Hemiptera: Sternorrhyncha: Coccoidea)[1] She is associate professor in the School of the Environment at the University of Queensland, where she has worked since 2006.

[2] Her major research focus is to "understand the origins, diversification and distributions of organisms, especially plants and insects in Australia.

"[2] She has made considerable contributions in the biogeography of plants and insects,[3][4][5] in plant/animal co-evolution,[6][7][8] and to the evolutionary history of other biota.

[9][10]