The following list below contains families that fall within the Stewart clan sept. This list was compiled by the Standing Council of Scottish Chiefs include:
Boyd, Carmichael,Garrow, Hunter, Menteith, Monteith, MacMichael.
Stewart, Appin: Carmichael, Combich, Livingston, Livingstone, MacCombich, Mackinlay, Maclae, Maclay, Maclea, Macleay, MacMichael.
Stewart, Atholl: Crookshanks, Cruickshank, Duilach, Gray, Macglashan Stewart Lennox: Howkins