Johnstown
Johnstown may refer to:
Places
Australia
- Johnstown, Queensland, a locality split between the Southern Burnett Region and the Gympie Region, Queensland
 
Canada
- Johnstown, Nova Scotia
 - Johnstown, Ontario, United Counties of Leeds and Grenville
 - Johnstown, Hastings County, Ontario
 - Johnstown District, Upper Canada
 
Ireland
- Johnstown Castle, a Gothic Revival castle in County Wexford
 - Johnstown, Dublin, a suburb
 - Johnstown, Kilcumny, a townland in Kilcumny civil parish, County Westmeath
 - Johnstown, County Kildare, a village
 - Johnstown, County Kilkenny, a small town
 - Johnstown, Killulagh, a townland in Killulagh civil parish, County Westmeath
 - Monroe or Johnstown (Nugent), a townland in County Westmeath
 - Johnstown, Templeoran, a townland in the barony of Moygoish, County Westmeath
 - Johnstown, Killodiernan, a townland in North Tipperary
 - Johnstown, Navan, a townland near Navan, County Meath
 
Northern Ireland
- Johnstown, County Armagh, a townland in Mullaghbrack civil parish, barony of Fews Lower, County Armagh
 
United States
- Johnstown, Colorado
 - Johnstown, Illinois
 - Johnstown, Indiana
 - Johnstown, Kansas
 - Johnstown, Maryland
 - Johnstown, Missouri
 - Johnstown, Nebraska, a village in Brown County
 - Johnstown (city), New York
 - Johnstown (town), New York
 - Johnstown, North Dakota
 - Johnstown, Ohio
 - Johnstown, Pennsylvania, a city in Cambria County, Pennsylvania
 - Johnstown (Amtrak station)
 - Johnstown, West Virginia
 - Johnstown, Wisconsin (disambiguation)
 - Johnstown, Wyoming
 - Johnstown Township, Michigan
 - Johnstown Township, Grand Forks County, North Dakota, Grand Forks County, North Dakota
 
Wales
Other uses
- Johnstown (crater), a crater on Mars
 - Johnstown (horse), an American Hall of Fame racehorse
 - Johnstown (meteorite), a 1924 meteorite which fell in Colorado, United States
 - Johnstown, a name briefly given to the Apollo program tracking/commutations ship Redstone
 - Johnstown, a 1999 album by Canadian musician Oh Susanna