Clough (/ˈklɒk/ KLOK; from Irish: an Chloch, meaning "the stone") is a village and townland in County Down, Northern Ireland. It sits about 3 miles from Dundrum on the A2 between Newcastle and Belfast. The A2 continues via Downpatrick and the coast via Strangford and the ferry to Portaferry to Belfast, whilst most road traffic heads along from Clough along the A24 via Carryduff to Belfast. It had a population of 255 people in the 2001 Census. Clough is situated within the Down District Council area.