Great Ashby is a civil parish in Hertfordshire. The parish was formed in 2011 and has been designated a community council. It comprises an area formerly part of the parish of Graveley and Great Ashby a neighbourhood on the outskirts of Stevenage.
In the 2011 census, the population of Great Ashby was 5,701.
Coordinates: 51°55′48″N 0°10′01″W / 51.930°N 0.167°W