Hebrew Meaning: The name Isabella is a Hebrew baby name. In Hebrew the meaning of the name Isabella is: Devoted to God. American Meaning: The name Isabella is an American baby name. In American the meaning of the name Isabella is: Devoted to God.Italian Meaning: The name Isabella is an Italian baby name. In Italian the meaning of the name Isabella is: consecrated to God.Shakespearean Meaning: The name Isabella is a Shakespearean baby name.merican Meaning: The name Isabella is an American baby name. In American the meaning of the name Isabella is: Devoted to God. Italian Meaning: The name Isabella is an Italian baby name. In Italian the meaning of the name Isabella is: consecrated to God.