To the clansmen and women that live this, the tartan's are the only symbols they need, but many things identify our clan to the world.   Here are a few:

Crest

The crest is the family emblem usually displayed on top of the helmet as part of the family's coat-of-arms. When encircled by a strap and buckle bearing the Clan's motto, any member of the clan may wear the crest on a badge. It is a triple towered castle standing upon a rock with the rock cradled in a crown.

The Clan MacLachlan motto is Fortis Et Fidus which means Strong and Faithful (trusty), terms that accurately describe the history of our clan.

Plant Badge

The plant badge is believed to be a charm or magic plant that is carried beside the Clan standard or fixed on a staff or spear. It was also used as a form of identification. Clans folk can wear a sprig of the plant pinned behind the silver crest on their bonnet or sash-badge brooch. They are the Rowan (or Mountain Ash) tree and the Lesser Periwinkle.  

Pipe Music

The Clan Maclachlan Pipe song is Moladh Mairi (In Praise of Mary).

The battle cry Life or Death was used by the United Regiment of MacLachlans and MacLeans, commanded by Lachlan MacLachlan, 17th Chief of Clan MacLachlan, in their charge against the government lines at the Battle of Culloden. It has since been adopted as the Clan's war cry.

The Gaelic spelling of the name is MacLachlainn.