Seymour Donald Mayneord Court, CBE, FRCSLT, FRCP, Hon FRCGP (born 4 January 1912 in Wem, died 9 September 1994 in Newcastle upon Tyne) was a deeply religious British paediatrician who was known for his achievements in the fields of respiratory disease and the epidemiology of disease in childhood. He was also known for working, in a primary role, that established the importance of research into the social and behavioural aspects of illness in childhood.