Oldcastle, County Meath

Oldcastle (Irish: An Seanchaisleán ) is a town in County Meath in the east of the Republic of Ireland.

Oldcastle is located in the extreme north-west of the county of Meath, near the border with County Cavan, 22 km from Kells.

The number of inhabitants Oldcastles was determined at the Census of 2006 2226 people.