The Ancient Egyptian Cartouche hieroglyph-(as hieroglyph only) is used to represent the Egyptian language word for 'name'. It is Gardiner sign listed no. V10, of the subgroup for rope, fibre, baskets, bags, etc.
Cartouche (hieroglyph) Wikipedia
The cartouche hieroglyph is used seven times in the Rosetta Stone, with the viper in the phrase: ren-f, "name-his", (or 'name-its').