Matko Marlais is a Consultant Paediatric Nephrologist at Great Ormond Street Hospital for Children. He looks after children with all forms of kidney disease and his areas of expertise include cystic kidney disease, infant chronic kidney disease, hypertension and vasculitis.

Dr Marlais conducts clinical research as an Honorary Associate Professor at the UCL Great Ormond Street Institute of Child Health. His research focuses on cystic kidney disease, hypertension and cardiovascular health in renal disease.

Dr Marlais maintains an active interest in medical education and training. He is a Training Program Director at the London School of Paediatrics and is Assessment Advisor for Paediatric Nephrology (CSAC) at the Royal College of Paediatrics and Child Health.