Galloon (sometimes spelled galon in British English)[1] is a heavily-decorated woven or braided trim, typically made of, or featuring, gold or silver thread, which may be woven or embroidered.

Galloon trim may also come in the form of lace, and is typically wide.

In formal evening wear, a non-military usage, this decoration has evolved into satin stripes that conceal the outer seam of men's dress trousers.

The distinction between galloon trim or braid, ribbon, and belting has not always been clear, and a great deal of overlap has occasionally caused problems in classification.

[2] The term galloon stems from the French galon, in turn itself from the verb galloner, "to braid".