Ferndown is a town and civil parish in the East Dorset district of Dorset in southern England, situated immediately to the north of unitary authority of Poole. The parish, which until 1972 was called Hampreston, includes the communities of Hampreston, Longham, Stapehill and Trickett's Cross. The latest population figure (according to the 2011 UK census) for the parish is 26,559.
In terms of population Ferndown is the second largest inland town in Dorset after Dorchester. The district has a relatively large elderly population (38.5% are aged 60 or above).