Rath (Irish: An Ráth) is a hamlet in the south west area of County Offaly, Ireland. The hamlet is located midway between the towns of Birr and Kilcormac on a northeast-southwest country road. It is located in the parish of Eglish and Drumcullen which is in the Roman Catholic Diocese of Meath. The hamlet has a number of local amenities for the local population including a church (dedicated to St. John the Baptist), a national school, a local community centre and a local shop. Drumcullen GAA is the local GAA club and is located about half a kilometre to the south of the hamlet.