Hilltown is a small village within the townland of Carcullion in County Down, Northern Ireland. Hilltown is the main village of the parish of Clonduff which also contains rural areas and another village named Cabra. It had a population of 899 people in the 2001 Census.
Hilltown has eight public houses in the high street, a legacy from 18th century smugglers who shared out their contraband here. The village has a livestock market on alternate Saturdays, the Boley sheep fair and festival in early July and a large sale of rams in September. The Georgian market house opposite St John's parish church (1766) adjoins the old inn, the Downshire Arms. The weathervane on the pretty cupola is a fish, a reminder of the good fishing in the River Bann and its tributaries. Hilltown is also a strong Nationalist and Irish Cultural Town.