In heraldry, one of the furs used in blazoning, representing the skin of the little animal of that French name (Hermine , the stoat). A field of ermine is argent (white) with sable (black) spots of a particular shape. The blazon of Bretagne is "Ermine", the shortest blazon in existence.

A field of ermines is sable with argent spots. A field of erminois is Or with sable spots. A field of pean, finally, is sable with Or spots.