Nicholas Allan Roy Wilson, Lord Wilson of Culworth, PC known as Lord Wilson, is a retired British judge. On 26 May 2011, he became a Justice of the Supreme Court of the United Kingdom, having previously served as a Lord Justice of Appeal since 2005. Lord Wilson has specialised in family law throughout his career. In December 2016, as one of the 11 Justices of the Supreme Court, Lord Wilson heard the Government's appeal of R (Miller) v Secretary of State for Exiting the European Union on the use of prerogative powers to start the process of leaving the European Union following the referendum on 23 June 2016.

A courtesy title is a form of address in systems of nobility used for children, former wives and other close relatives of a peer, as well as certain officials such as some judges and members of the Scottish gentry. These styles are used "by courtesy" in the sense that persons referred to by these titles do not in law hold the substantive title. There are several different kinds of courtesy titles in the British peerage system.