Nancy Jean Turner CM OBC FRSC FLS (born 1947) is a Canadian ethnobiologist, originally qualified in botany, who has done extensive research work with the indigenous peoples of British Columbia, the results of which she has documented in a number of books and numerous articles.

She obtained her doctorate in Ethnobotany after studying the Bella Coola, Haida and Lillooet indigenous groups of the Pacific North-West.

[2] Turner's research documented not only the role that plants have had in these groups' cultures but also the effects that Indigenous peoples have had historically on the landscape of Canada.

[1] The Government of British Columbia admitted Nancy Turner to the Order of British Columbia in 1999 and describe her, her work, and her contributions as follows:[3] Nancy J. Turner ... is an internationally-distinguished scholar and scientist who has devoted her life to documenting the endangered knowledge of First Nations.

As a pioneer in ethnobiology, her more than 25 years of research have focused on the diverse interactions of First Peoples in British Columbia with the ecosystems they depended on and the critical role of plant resources for foods, medicines and materials.