Johnstown is a townland in the Barony of Ormond Lower, County Tipperary, Ireland. It is located in the civil parish of Killodiernan.[1]
Two buildings within the townland are listed as protected structures by Tipperary County Council (RPS Ref S192 and S191).
Killodiernan Church of Ireland, built 1811 of rubble stone with a four pinnacle tower and white brick dressing around the windows and the Gateway of the former Johnstown house with three arches in the Neo-Classical style.