Iffa and Offa West (Irish: Uíbh Eoghain agus Uíbh Fhathaidh Thiar) is a barony in County Tipperary, Ireland. This geographical unit of land is one of 12 baronies in County Tipperary. Its chief town is Cahir. The barony lies between Clanwilliam to the north-west (whose chief town is Tipperary), Middle Third to the north-east (whose chief town is Cashel) and Iffa and Offa East to the east (whose chief town is Clonmel). The area is currently administered by Tipperary County Council. The barony is within the geographic remit of the Roman Catholic Diocese of Waterford and Lismore.