[ModIr. An Mhí, the middle (place); Contae na Mí].
County of 903 square miles in the Republic of Ireland, north and west of Co. Dublin. Not identical with nor coextensive with the ancient and medieval Mide, from which the name Meath is derived. From the 8th to the 11th centuries, what is now Co. Meath was contained in the petty kingdom of Brega. Many of the most celebrated sites of early Irish civilization, e.g. Tara, Brug na Bóinne, Tailtiu, Tlachtga, as well as much of the Boyne valley, lie in Co. Meath.