Gaelic Meaning: The name Art is a Gaelic baby name. In Gaelic the meaning of the name Art is: Rock. American Meaning: The name Art is an American baby name. In American the meaning of the name Art is: Rock. Irish Meaning: The name Art is an Irish baby name. In Irish the meaning of the name Art is: Noble bear.Celtic Meaning: The name Art is a Celtic baby name. In Celtic the meaning of the name Art is: Strong as a bear. English Meaning: The name Art is an English baby name.In English the meaning of the name Art is: From the Roman clan name Artorius, meaning noble, courageous. Famous bearer: Legendary sixth century King Arthur of Britain and his Round Table of knights.aelic Meaning: The name Art is a Gaelic baby name. In Gaelic the meaning of the name Art is: Rock. American Meaning: The name Art is an American baby name. In American the meaning of the name Art is: Rock. Irish Meaning: The name Art is an Irish baby name. In Irish the meaning of the name Art is: Noble bear.