Robert John Reed, Baron Reed of Allermuir, is a British judge who has been President of the Supreme Court of the United Kingdom since January 2020. He was the principal judge in the Commercial Court in Scotland before being promoted to the Inner House of the Court of Session in 2008. He is an authority on human rights law in Scotland and elsewhere; he served as one of the UK's ad hoc judges at the European Court of Human Rights. He was also a Non-Permanent Judge of the Court of Final Appeal of Hong Kong.