The bowler hat is a hard felt hat introduced by a Norfolk landowner William Coke in the 19th century. It offered a midway between the formality of the top hat associated with the upper classes and the casual nature of soft felt hats worn by the lower middle classes. It is the traditional headwear of London city 'gents' and has become something of a British cultural icon. It was traditionally also worn by members of the Orange Order in Northern Ireland during their 12th July annual parades, though usage has declined.

Bowler hats were famously associated with British Prime Minister Stanley Baldwin and the comedians Laurel and Hardy. Today, the Bowler Hat is also known as a symbol of John Steed, of Avengers fame.