The fleur-de-lis (or fleur-de-lys; plural: fleurs-de-lis) is a stylised design of an iris flower which is used both decoratively and symbolically. It may be purely ornamental or it may be "at one and the same time political, dynastic, artistic, emblematic and symbolic", especially in heraldry. While it has appeared on countless European coats of arms and flags over the centuries, the fleur-de-lis is particularly associated with the French monarchy. It is an enduring symbol of France, but, being regarded most notably as the emblem of the monarchy, was not adopted officially by any of the French republics.
It appears on military insignia and the logos of many different organisations, and during the 20th century it was adopted by various Scouting organisations worldwide for their badges. Architects and designers may use it alone or as a repeated motif in a wide range of contexts, from ironwork to bookbinding.