Professor Dame Ottoline Leyser DBE FRS (Fellow) has been awarded the Croonian Medal and Lecture 2023 by the Royal Society. The award recognises her role in two of the most important discoveries regarding the nature and perception of plant hormones, and for her contributions to gender equality in science.

The Croonian Medal and Lecture, awarded annually, is regarded as the premier lecture in the biological sciences. It was conceived and endowed by William Croone, of one the founding Fellows of the Royal Society. The first lecture was given in 1738. Past winners have included John Gurdon, Fred Sanger, Max Perutz and Francis Crick.