Barbara Pickersgill (born 1940) is a British botanist with a special interest in the domestication of crops, the genetics, taxonomy, and evolutionary biology of cultivated plants, and the preservation of crop diversity. Her 1966 dissertation for the degree of Doctor of Philosophy from Indiana University concerned the taxonomy of Capsicum chinense.
In 2005 she retired from the School of Biological Sciences at the University of Reading, to become an Honorary Research Associate. Her research projects include:
- The molecular systematics and the use of wild species in the improvement of farmed chilis (Capsicum)
- Research on the domestication of crops, notably the common bean, Phaseolus vulgaris, working with the Centro Internacional de Agricultura Tropical (CIAT) in Colombia
- The genetic diversity, conservation and improvement of tropical crops such as:
On 4 August 2006 the Linnean Society of London organised a one-day conference in honour of Pickersgill.
- Barbara Pickersgill (1966). The Variability and Relationships of Capsicum Chinense JACQ. Indiana University.
- "Past Presidents (listed by first year of office)". The Society for Economic Botany.
- Plants, people and evolution: a meeting in honor of Barbara Pickersgill, August 2006, held by the Linnean Society of London
- IPNI. Pickersgill.