1. Bolga, Bulga [Irish, lightning (?)]. Name borne by several shadowy figures in early Irish mythology and history of whom the most important appears to be the ancestor deity of both the Corcu Loígde, a people of south-west Munster, and the Fir Bolg of the pseudo-history Lebor Gabála [Book of Invasions]. His name appears to record a movement of the Belgae into Ireland. He was credited with the invention of the spear, in Old Irish bolga, bulga. He may have been a father of Dáire mac Dedad, or Dáire may only have been one of his disguises. Bolg was also known as Ailill Érann.
2. In Macpherson's Ossian (1760) the name for the southern part of Ireland.
