Professor Mary McCarron, PhD RNID RGN BNS FAAN FTCD, is an internationally recognised leader in ageing, dementia and intellectual disability. She is Professor of Ageing and Intellectual Disability and Director of the Trinity Centre for Ageing and the Life Course in Intellectual Disability (TCAID) at Trinity College Dublin, and Executive Director of Ireland’s National Intellectual Disability Memory Service. She is the founder and Principal Investigator of the Intellectual Disability Supplement to the Irish Longitudinal Study on Ageing (IDS-TILDA), Europe’s first longitudinal study of ageing in people with intellectual disability, and has led a 25-year cohort study on dementia in people with Down syndrome. Her research has shaped clinical pathways, dementia-friendly environments, and national dementia policy in Ireland and internationally. Professor McCarron has secured approximately €20 million in competitive research funding and has published extensively in high-impact journals. She is a Fellow of the American Academy of Nursing and Trinity College Dublin, an Honorary Professor at Queen’s University Belfast, and a Visiting Professor at Duke University. Her work bridges research, clinical innovation, and policy, with a strong commitment to co-production and improving outcomes for people with Down syndrome and dementia.