thumb|[[Winston Churchill wearing a homburg hat]]

thumb|upright|right|[[Konrad Adenauer and Willy Brandt wearing homburg hats]]

A homburg is a semi-formal hat of fur felt, characterized by a single dent running down the centre of the crown (called a "gutter crown"), a wide silk grosgrain hatband ribbon, a flat brim shaped in a "pencil curl", and a ribbon-bound trim about the edge of the brim. It is traditionally offered in black or grey.

The name comes from Bad Homburg in Hesse, in the German Empire, where it originated as hunting headgear. It was popularised in the late 19th century by the Prince of Wales, the future King Edward VII, as a less formal alternative to the prevalent top hat, along with the bowler hat and the boater hat. The original homburg conceived in the 19th century was of slightly more generous proportions than seen in 20th-century versions. a hat that took three months to craft and was dubbed the "international homburg" by hatters, since workers from ten countries participated in its making.

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  • "Felt dress hats" at Hat History
  • "Homburg Hat – Past, Present and Future" at Gentleman's Gazette