Cool metallic look with embossed Celtic patterns and symbols.The Celtic Dog meaning is loyalty. Man (and woman's) best friend, the dog symbolizes the strong bond of companionship felt between human and animal. The dog was considered to be good luck in the village, and as such, the symbol of the dog was commonly found in Celtic décor, clothing, etc. The dog symbol is a harbinger of good health. More likely, the dog's companionship warded away the illnesses loneliness and rejection cause. Further, a Celt was rarely found hunting without a hound nearby.