The kilt pin is an accessory that is worn on the lower corner of the outer apron of a kilt, near the selvedge and the open, fringed part of the apron. It is often topped with a small decorative clan crest or other similar design. Typically, the rule for the placement of the kilt pin is such that it must be two pattern squares over and up from the edge of the kilt fabric.

This is a decorative item meant to be pinned through the outer apron only. It is not heavy enough to prevent the kilt apron from blowing open in a breeze. It should never be pinned through both aprons, since this would result in distorting the proper hang and action of the kilt and at worst could result in tearing the kilt. Note that the thick-shanked version has been known to cause kilt damage.