Ailith Ewing (formerly Pirie) is a Chancellor's Fellow and Group Leader jointly at the MRC Human Genetics Unit and the Cancer Research UK Edinburgh Centre in the Institute of Genetics and Cancer at the University of Edinburgh.

Ailith has an MMath (Hons) Statistics degree (First Class) from the University of St Andrews. In 2012, she moved to Cambridge to start her PhD, with Prof. Paul Pharoah, investigating the role of rare germline genetic variation in ovarian cancer susceptibility and survival after diagnosis.

On completion in 2015, she worked as a Medical Statistician in the Clinical Trial Service Unit at the University of Oxford before joining the lab of Prof. Colin Semple as a bioinformatician in September 2016.

In December 2017, Ailith was awarded a UKRI Innovation Fellowship to investigate the mutational landscape of high grade serous ovarian cancer in collaboration with Prof. Charles Gourley, AstraZeneca and the Scottish Genomes Partnership.

She was awarded a Chancellor's Fellowship to start her own group in statistical cancer genomics in April 2021.

Ailith is also co-lead of the statistical element of the Ed-DaSH project with Dr Catalina Vallejos.