The McIntosh name was created when Shaw McDuff was made first Earl of Fife by the king. He changed his name to McIntosh. (Origin Scottish) The son of the leader or first. Tosh, and Toshich, signify the beginning or first part of any thing; so Toshich came to denote the general or leader of the van. The McIntoshes derive themselves from McDuff, who obtained his right from Malcom Canmore.