Dubhghall mac Suibhne (fl. 1232×1241 – 1262) was a Scottish landholder in Argyll, and a leading member of Clann Suibhne. He was a son of Suibhne mac Duinn Shléibhe, and appears to have held lordship of Knapdale from at least the 1240s to the 1260s, and may have initiated the construction of Skipness Castle and Lochranza Castle.