Jonathan Hugh Mance, Baron Mance, is a retired British judge who was formerly Deputy President of the Supreme Court of the United Kingdom.

The Deputy President of the Supreme Court of the United Kingdom is the second most senior judge of the Supreme Court of the United Kingdom, after the President of the Supreme Court. The office is equivalent to the now-defunct position of Second Senior Lord of Appeal in Ordinary, also known previously as the Second Senior Law Lord, who was the second highest-ranking Lord of Appeal in Ordinary.