The name Kenneth is an American baby name. In American the meaning of the name Kenneth is: Handsome. Scottish Meaning: The name Kenneth is a Scottish baby name.In Scottish the meaning of the name Kenneth is: Handsome. Root of the surname MacKenzie. Famous Bearer: Kenneth Grahame (1859- 1932), author of The Wind in the Willows. English Meaning: The name Kenneth is an English baby name.he name Kenneth is an American baby name. In American the meaning of the name Kenneth is: Handsome. Scottish Meaning: The name Kenneth is a Scottish baby name.