Millerstown may refer to:
Places Ireland Millerstown, County Westmeath, a townland in the civil parish of Killucan
United States Millerstown, Kentucky Millerstown, Champaign County, Ohio Millerstown, Sandusky County, Ohio Millerstown, Pennsylvania, in Perry County Millerstown, Blair County, Pennsylvania Macungie, Pennsylvania, which was known as Millerstown until officially renamed in 1875