Gallowglass

thumb|Fifteenth-century sculpted figures of Gallowglass as depicted upon the apparent effigy of Felim O'Connor (d. 1265)|Feidhlimidh Ó Conchobhair, King of Connacht and father of [[Áed na nGall, victor of the Battle of Connacht.]]

The Gallowglass (also spelled galloglass, gallowglas or galloglas; from meaning "foreign warriors") were a class of elite mercenary warriors who were principally members of the Norse-Gaelic clans of Ireland and Scotland between the mid 13th century and late 16th century. It originally applied to Highland Scots, who shared a common background and language with the Irish, but as they were descendants of 10th-century Norse settlers who had intermarried with the local population in western Scotland, the Irish called them ("foreign Gaels").