The Freedom of the City of London is a recognition awarded to people who have achieved success, recognition or celebrity in their chosen field. Honorary Freedom of the City of London is a recognition of lifetime achievement or high international standing, and is much rarer than the broader freedom of the city.

The tradition of Freemen goes back many centuries, when the citizens of towns and cities would be granted valuable rights to trade, and other privileges conceded by royal charters. The granting of the Honorary Freedom of the City of London (or Freedom Honoris Causa) is extremely rare and generally awarded today only to royalty, heads of state, or figures of genuine global standing. It is the greatest honour that is in the power of the City of London to bestow, and usually takes place in Guildhall in the presence of the Common Council and the lord mayor, sheriffs, and aldermen, along with invited guests.