Lugaid (Lughaid, Lughaidh) is a popular medieval Irish name, thought to be derived from the god Lug. It is borne by a number of figures from Irish history and mythology, including:
High Kings of Ireland
Lugaid Íardonn, legendary High King of Ireland of the 9th century BC
Lugaid Lámdearg, legendary High King of Ireland of the 9th century BC
Lugaid Laigde, legendary High King of Ireland of the 8th century BC
Lugaid Luaigne, legendary High King of Ireland of the 2nd century BC
Lugaid Riab nDerg, legendary High King of Ireland of the 1st century BC
Lugaid Mac Con, semi-legendary High King of Ireland of the 3rd century AD
Lugaid mac Lóegairi (died c. 507), High King of Ireland
Lugaid Loígde, legendary King of Tara upon whom several of the above may be based
Lugaid mac Nóis, legendary king of Munster and suitor of Emer
Lugaid mac Con Roí, legendary king of Munster and killer of Cú Chulainn
Lugaid Lága, henchman of Lugaid mac Con, regarded as one of the greatest warriors in Ireland
Saint Moluag (died 592), also known as Saint Lughaidh, 6th-century Irish Pict missionary
Saint Molua, 6th-century Irish saint, founder of Killaloe
Lugaid Wikipedia (Text) CC BY-SA