The gallowglass (also spelt galloglass, gallowglas or galloglas; from ) were a class of elite mercenary warriors who were principally members of the Norse-Gaelic clans of Scotland between the mid 13th century and late 16th century. As Scots, they were Gaels and shared a common background and language with the Irish, but as they had intermarried with the 10th century Norse settlers of western Scotland, the Irish called them Gall Gaeil ("foreign Gaels").