Sir Hugh Ian Lang Laddie (15 April 1946 – 28 November 2008) was a judge of the High Court of England and Wales. He was a leader in the field of intellectual property law. He was co-author of the Modern Law of Copyright (1980). He was appointed to a Chair in Intellectual Property Law at University College London, with effect from 1 September 2006. He founded there the Institute of Brand and Innovation Law. The Sir Hugh Laddie chair in Intellectual Property has subsequently been established at UCL.