The title of Viscount of Sussex is a British noble title that was created in 1801. It is part of the peerage system in the United Kingdom and is associated with the historic county of Sussex. The title is often held by members of the aristocracy and can be inherited, typically passed down through generations. The first holder of the title was John Sackville, who became the 1st Viscount of Sussex. The title has since been associated with various notable figures and has played a role in the social and political history of England. Today, the title remains a symbol of the British peerage.