From Scottish Máel Coluim, which means "disciple of Saint COLUMBA". This was the name of four kings of Scotland starting in the 10th century, including Malcolm III, who became king after killing Macbeth, the usurper who had murdered his father. The character Malcolm in Shakespeare's tragedy 'Macbeth' (1606) is based on him. Another famous bearer was Malcolm X (1925-1965), an American civil rights leader.