A Specialist Registrar or SpR is a doctor in the Republic of Ireland and formerly in the United Kingdom  who is receiving advanced training in a specialist field of medicine in order eventually to become a consultant. After graduation from medical school, they will have undertaken several years of work and training as a pre-registration house officer and senior house officer, and will usually have taken examinations for membership of the Royal College of their speciality. For example, medical registrars will take the MRCP examinations to enable progression to become registrars.