Donnchad mac Maíl Coluim (Modern Gaelic: "Donnchadh mac Mhaoil Chaluim") renamed as Duncan II (before c. 1060 – 12 November 1094) was king of Scots. He was son of Malcolm III (Máel Coluim mac Donnchada) and his first wife Ingibiorg Finnsdottir, widow of Thorfinn Sigurdsson.