County Meath (Irish: Contae na Mí) is a county in Ireland, often informally called The Royal County. The county town is Navan, where the county hall and government are located, although Trim, the former county town, has historical significance and remains a sitting place of the circuit court. Trim contains Ireland's largest Norman castle and was the setting for many Norman-Irish parliaments. Meath is also home to Kells, with its round tower and monastic past, and Slane, known for its castle and annual rock concert and the Ledwidge Cottage Museum.

Meath (the "middle") was formed from the eastern part of the province of Midhe - see Kings of Mide - but now forms part of Leinster. Historically this province of Meath included all of the current county as well as all of Westmeath and parts of Cavan, Longford, Louth, Offaly, Dublin and Kildare. The High King of Ireland sat at Tara in Meath. The archaeological complex of Brú na Bóinne is 5,000 years old and includes the burial sites of Newgrange, Knowth and Dowth, in the northeast of the county, is a UNESCO designated World Heritage Site.

The seat of the Roman Catholic Diocese of Meath was located in Navan until the late 19th century, when it was relocated to Mullingar, County Westmeath - outside the county but within the historic diocese of Meath.

County Meath also has the only two Gaeltacht areas in the province of Leinster at Ráth Cairn and Báile Ghib.

source: Wikipedia County Meath